subtract : 13/7 - 3/21
please tell correct information
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Answer:
The correct answer is
Step-by-step explanation:
12/7
Answered by
0
Answer:
12/7
Step-by-step explanation:
A - B = 137−321137-321
denominator of the two fraction is different. Therefore, find lcm for two denominators (7, 21) = 21
Multiply lcm with both numerator & denominator
137−321=13×217×21−3×2121×21137-321=13×217×21-3×2121×21
= 13×321−3×12113×321-3×121
= 3921−3213921-321
Subtract two numerator of the fraction
3921−321=39−321=36213921-321=39-321=3621
Simplify above fraction 36213621
Common divisor of (36, 21) is 3
Divide both numerator & denominator by gcd value 3
3621=36÷321÷3=1273621=36÷321÷3=127
137−321=127137-321=127
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