Subtract 20/63 from 98/9, Solve 10 8/9

Subtract 20/63 from 98/9

1^st number: 10 8/9, 2^nd number: 20/63

98/9 - 20/63 is 74/7.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 9 × 7 = 63,
98/9 = 98 × 7/9 × 7 = 686/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
20/63 = 20 × 1/63 × 1 = 20/63
Subtract the two like fractions:
686/63 - 20/63 = 686 - 20/63 = 666/63
After reducing the fraction, the answer is 74/7
In mixed form: 104/7

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