Subtract 35/63 from 98/90, Solve 1 8/90

Subtract 35/63 from 98/90

1^st number: 1 8/90, 2^nd number: 35/63

98/90 - 35/63 is 8/15.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 63 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 90 × 7 = 630,
98/90 = 98 × 7/90 × 7 = 686/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
35/63 = 35 × 10/63 × 10 = 350/630
Subtract the two like fractions:
686/630 - 350/630 = 686 - 350/630 = 336/630
After reducing the fraction, the answer is 8/15

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