Subtract 98/28 from 28/10, Solve 2 8/10

Subtract 98/28 from 28/10

1^st number: 2 8/10, 2^nd number: 3 14/28

28/10 - 98/28 is -7/10.

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

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 10 × 14 = 140,
28/10 = 28 × 14/10 × 14 = 392/140
Likewise, for the 2nd fraction, since 28 × 5 = 140,
98/28 = 98 × 5/28 × 5 = 490/140
Subtract the two like fractions:
392/140 - 490/140 = 392 - 490/140 = -98/140
After reducing the fraction, the answer is -7/10

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