Subtract 98/9 from 42/48, Solve 42/48

Subtract 98/9 from 42/48

1^st number: 42/48, 2^nd number: 10 8/9

42/48 - 98/9 is -721/72.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 9 is 144

Next, find the equivalent fraction of both fractional numbers with denominator 144
For the 1st fraction, since 48 × 3 = 144,
42/48 = 42 × 3/48 × 3 = 126/144
Likewise, for the 2nd fraction, since 9 × 16 = 144,
98/9 = 98 × 16/9 × 16 = 1568/144
Subtract the two like fractions:
126/144 - 1568/144 = 126 - 1568/144 = -1442/144
After reducing the fraction, the answer is -721/72

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