Subtract 8/84 from 27/10, Solve 2 7/10

Subtract 8/84 from 27/10

1^st number: 2 7/10, 2^nd number: 8/84

27/10 - 8/84 is 547/210.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 10 × 42 = 420,
27/10 = 27 × 42/10 × 42 = 1134/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
8/84 = 8 × 5/84 × 5 = 40/420
Subtract the two like fractions:
1134/420 - 40/420 = 1134 - 40/420 = 1094/420
After reducing the fraction, the answer is 547/210
In mixed form: 2127/210

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