Subtract 7/27 from 81/40, Solve 2 1/40

Subtract 7/27 from 81/40

1^st number: 2 1/40, 2^nd number: 7/27

81/40 - 7/27 is 1907/1080.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 27 is 1080

Next, find the equivalent fraction of both fractional numbers with denominator 1080
For the 1st fraction, since 40 × 27 = 1080,
81/40 = 81 × 27/40 × 27 = 2187/1080
Likewise, for the 2nd fraction, since 27 × 40 = 1080,
7/27 = 7 × 40/27 × 40 = 280/1080
Subtract the two like fractions:
2187/1080 - 280/1080 = 2187 - 280/1080 = 1907/1080
In mixed form: 1827/1080

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