Subtract 98/40 from 4/15, Solve 4/15

Subtract 98/40 from 4/15

1^st number: 4/15, 2^nd number: 2 18/40

4/15 - 98/40 is -131/60.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 15 × 8 = 120,
4/15 = 4 × 8/15 × 8 = 32/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
98/40 = 98 × 3/40 × 3 = 294/120
Subtract the two like fractions:
32/120 - 294/120 = 32 - 294/120 = -262/120
After reducing the fraction, the answer is -131/60

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