Subtract 10/84 from 28/27, Solve 1 1/27

Subtract 10/84 from 28/27

1^st number: 1 1/27, 2^nd number: 10/84

28/27 - 10/84 is 347/378.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 84 is 756

Next, find the equivalent fraction of both fractional numbers with denominator 756
For the 1st fraction, since 27 × 28 = 756,
28/27 = 28 × 28/27 × 28 = 784/756
Likewise, for the 2nd fraction, since 84 × 9 = 756,
10/84 = 10 × 9/84 × 9 = 90/756
Subtract the two like fractions:
784/756 - 90/756 = 784 - 90/756 = 694/756
After reducing the fraction, the answer is 347/378

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