Subtract 28/8 from 10/15, Solve 10/15

Subtract 28/8 from 10/15

1^st number: 10/15, 2^nd number: 3 4/8

10/15 - 28/8 is -17/6.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 15 × 8 = 120,
10/15 = 10 × 8/15 × 8 = 80/120
Likewise, for the 2nd fraction, since 8 × 15 = 120,
28/8 = 28 × 15/8 × 15 = 420/120
Subtract the two like fractions:
80/120 - 420/120 = 80 - 420/120 = -340/120
After reducing the fraction, the answer is -17/6

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