Subtract 8/5 from 2/28, Solve 2/28

Subtract 8/5 from 2/28

1^st number: 2/28, 2^nd number: 1 3/5

2/28 - 8/5 is -107/70.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 5 is 140

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 28 × 5 = 140,
2/28 = 2 × 5/28 × 5 = 10/140
Likewise, for the 2nd fraction, since 5 × 28 = 140,
8/5 = 8 × 28/5 × 28 = 224/140
Subtract the two like fractions:
10/140 - 224/140 = 10 - 224/140 = -214/140
After reducing the fraction, the answer is -107/70

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