Subtract 98/63 from 15/8, Solve 1 7/8

Subtract 98/63 from 15/8

1^st number: 1 7/8, 2^nd number: 1 35/63

15/8 - 98/63 is 23/72.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 8 × 63 = 504,
15/8 = 15 × 63/8 × 63 = 945/504
Likewise, for the 2nd fraction, since 63 × 8 = 504,
98/63 = 98 × 8/63 × 8 = 784/504
Subtract the two like fractions:
945/504 - 784/504 = 945 - 784/504 = 161/504
After reducing the fraction, the answer is 23/72

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