Question

anyone pls answer these maths problems..

hurray up plss..write in step by step..

I will mark as brainlist​

Answer 1

Answer:

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Step-by-step explanation:

1. *Use simple algebra*

Make the missing number x

SO, -7/12 + x = -5/8

• Move "-7/12" over the equality sign. Then this becomes positive because it crossed the equaltiy sign.

x = -5/8+7/12

• The you then solve $\frac{-5}{8}+\frac{7}{12}$  using the addition of fractions method.
• The -5/12 becomes -(5/12) because of the rule; -a/b = -(a/b)
• So you find the lcm (lowest common multiple) = 24
• Find the factor of 8 and 12 that gives 24 and multiply it by their respective numerators.

(3*-5 + 2*7)/24  * Solve bracket first*

= -1/24

2. We are solvin this too using the algebra method

• Make x the missing number.

-3/8 - x = 5/6

• Collect like terms or simply, make the subject of the formula.

SO, -x = 5/6 + 3/8

• Solve with Addition of fractions
• Find the LCM
• LCM is also 24
• then find the factors of both numbers that multiply to get 24 and multiply both answers with respective numerators.

(4*5 + 3*3)/24

Solve bracket first

= 29/24 or 1 5/4 ( mixed fraction )

So, -x = 29/24

• Get rid of the - in front of the x by dividing both sides by -1

-x/-1 = (29/24)/-1

x = -29/24

3.  Same applies here too but then multiplication

• Arrange it into algebraic form and make x the subj.

-5/6 *  x = 8/9

x = 8/9 ÷ -5/6

• Now you solve the fraction using division of fraction. which includes reciprocal and excludes LCM
• And using the reciprocal, It is always the fraction on the right, The numerator switches places with the denominator and this changes the division sign to multiplication

8/9 * 6/-5

• Then you solve using multiplication of fractions which also excludes LCM and includes straight  up multiplication

8*6 = 48

9*-5 = -45

= 48/45   *Break down with 3*

= 16/-15

4.

• Find the lcm
• LCM = 35
• Now you can multiply the factors of both 7 an 5 which gives 35 with their respective numerators. or simply multiply both sides by the other fraction's denominator. e.g. 3/5 * 7/7 and 4/7 * 5/5

3*7 = 21

5*4 = 20

so, 21/35 and 20/35

then multiply each number by 10/10

= 200/350 and 210/350

Any number between this range is your answer.

a) 201/350

b) 209/350