Subtract 3/27 from 40/28, Solve 1 12/28

Subtract 3/27 from 40/28

1^st number: 1 12/28, 2^nd number: 3/27

40/28 - 3/27 is 83/63.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 27 is 756

Next, find the equivalent fraction of both fractional numbers with denominator 756
For the 1st fraction, since 28 × 27 = 756,
40/28 = 40 × 27/28 × 27 = 1080/756
Likewise, for the 2nd fraction, since 27 × 28 = 756,
3/27 = 3 × 28/27 × 28 = 84/756
Subtract the two like fractions:
1080/756 - 84/756 = 1080 - 84/756 = 996/756
After reducing the fraction, the answer is 83/63
In mixed form: 120/63

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