Simplify the following :-
Please give full Explanation
Please give correct answer
Answers
Answer:
a) -3-10/15=
= -13/15
b) -3/10-7/12=
= -106/120
= -53/60
c) 7/8-1/4=
= 28-8/32
= 20/32
=5/8
d) -2/7
e) -4/15×5/18=
= -2/27
f)5/18 × 27/-10=
= -3/4
g) -21/10-7/4=
= -84-70/40
= -154/40
= -77/20
h) -13/3÷26/5=
= -13/3×5/26
= -5/6
Step-by-step explanation:
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Answer:
For the addition and subtraction questions u got to the find the lcm of the denominators.
Mixed fractions convert to improper for eg h: -4 1/3 = -4 x 3 + 1 = -11/3
then the division questions, the right side of the fraction shud be inverted as f: 5/18 ÷ -10/27 = 5/18 x 27/-10 = 3/-4. as the denominator cannot be negative we put the negative sign for numerator. -3/4.
LCM RELATED : a b c
Mixed fractions : g h
so for g : u need to make tht fractions as improper fraction and then do lcm of denominators. then subtraction of fraction u do..
Check above Pics and do..
To be Noted: (-1) + (-1)= -2
(-1) + (1)= 0
(-1) x (-1)= 1
(-1) x (1)= -1
More Examples:
(-4) x (-3) = 12
(-4) x (3) = -12
(-4) + (-3) = -7
(-4) + (3) = -1
(4) - (-3) = 7
(6) + (-3) = 3
( Always check wht is the sign given to larger number. Only applicable for addition and subtraction questions.. multiplication is different.. if u multiply positive x positive the number will be positive itself and u multiply negative x negative the answer will be positive again.. but when you multiply positive x negative then answer will be negative and negative x positive that also will be negative.)
Hope this helps u.
Sorry for giving detailed explanation.
