Subtract 15/42 from 98/8, Solve 12 2/8

Subtract 15/42 from 98/8

1^st number: 12 2/8, 2^nd number: 15/42

98/8 - 15/42 is 333/28.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 42 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 8 × 21 = 168,
98/8 = 98 × 21/8 × 21 = 2058/168
Likewise, for the 2nd fraction, since 42 × 4 = 168,
15/42 = 15 × 4/42 × 4 = 60/168
Subtract the two like fractions:
2058/168 - 60/168 = 2058 - 60/168 = 1998/168
After reducing the fraction, the answer is 333/28
In mixed form: 1125/28

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