Subtract 21/14 from 49/5, Solve 9 4/5

Subtract 21/14 from 49/5

1^st number: 9 4/5, 2^nd number: 1 7/14

49/5 - 21/14 is 83/10.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 14 is 70

Next, find the equivalent fraction of both fractional numbers with denominator 70
For the 1st fraction, since 5 × 14 = 70,
49/5 = 49 × 14/5 × 14 = 686/70
Likewise, for the 2nd fraction, since 14 × 5 = 70,
21/14 = 21 × 5/14 × 5 = 105/70
Subtract the two like fractions:
686/70 - 105/70 = 686 - 105/70 = 581/70
After reducing the fraction, the answer is 83/10
In mixed form: 83/10

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