Subtract 45/10 from 15/28, Solve 15/28

Subtract 45/10 from 15/28

1^st number: 15/28, 2^nd number: 4 5/10

15/28 - 45/10 is -111/28.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 10 is 140

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 28 × 5 = 140,
15/28 = 15 × 5/28 × 5 = 75/140
Likewise, for the 2nd fraction, since 10 × 14 = 140,
45/10 = 45 × 14/10 × 14 = 630/140
Subtract the two like fractions:
75/140 - 630/140 = 75 - 630/140 = -555/140
After reducing the fraction, the answer is -111/28

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