Subtract 18/40 from 40/27, Solve 1 13/27

Subtract 18/40 from 40/27

1^st number: 1 13/27, 2^nd number: 18/40

40/27 - 18/40 is 557/540.

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

Next, find the equivalent fraction of both fractional numbers with denominator 1080
For the 1st fraction, since 27 × 40 = 1080,
40/27 = 40 × 40/27 × 40 = 1600/1080
Likewise, for the 2nd fraction, since 40 × 27 = 1080,
18/40 = 18 × 27/40 × 27 = 486/1080
Subtract the two like fractions:
1600/1080 - 486/1080 = 1600 - 486/1080 = 1114/1080
After reducing the fraction, the answer is 557/540
In mixed form: 117/540

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