Question

Q5. Solve the following
a) Add 11/24 and 23/40
b) Subtract 7/9 from 11/30
c) Multiply 120/333 with 11/84​

Answer 1

Answer:

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Step-by-step explanation:

$\frac{11}{24}+\frac{23}{40}\\\\Taking\:\:LCM,\:\:we\:\:get\\\\\frac{11\times5}{24\times5}+\frac{23\times3}{40\times3}\\\\\frac{55}{120}+\frac{69}{120}\\\\\frac{55+69}{120}\\\\\frac{124}{120} \:\:\:\:=>\:\: \frac{31}{30}$

==========================

$\frac{7}{9}-\frac{11}{30}\\\\Taking\:\:LCM,\:\:we\:\:get\\\\\frac{7\times10}{9\times10}-\frac{11\times3}{30\times3}\\\\\frac{70}{90}-\frac{33}{90}\\\\=>\:\:\:\frac{37}{90}$

==========================

$\frac{120}{333}\times\frac{11}{84} \:\:=\frac{1320}{27972} \:\:\:=>\:\:\frac{110}{2331}$

Answer 2

Answer:

11/24+23/40

Step-by-step explanation:

Take LCM OF denominator

LCM= 120

11×5/24×5+23×3/40×3

55/120+69/120

55+69/120=124/120=31/30

B) 7/9-11/30

Take LCM

LCM = 90

=7×10/9×10-11×3/30×3

=70/90-33/90

=70-33/90=37/90

C) 120/333×11/84

=1320/27,972=10/2331

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