Subtract 98/63 from 30/72, Solve 30/72

Subtract 98/63 from 30/72

1^st number: 30/72, 2^nd number: 1 35/63

30/72 - 98/63 is -41/36.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 63 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
30/72 = 30 × 7/72 × 7 = 210/504
Likewise, for the 2nd fraction, since 63 × 8 = 504,
98/63 = 98 × 8/63 × 8 = 784/504
Subtract the two like fractions:
210/504 - 784/504 = 210 - 784/504 = -574/504
After reducing the fraction, the answer is -41/36

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