Subtract 3/27 from 27/20, Solve 1 7/20

Subtract 3/27 from 27/20

1^st number: 1 7/20, 2^nd number: 3/27

27/20 - 3/27 is 223/180.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540

Next, find the equivalent fraction of both fractional numbers with denominator 540
For the 1st fraction, since 20 × 27 = 540,
27/20 = 27 × 27/20 × 27 = 729/540
Likewise, for the 2nd fraction, since 27 × 20 = 540,
3/27 = 3 × 20/27 × 20 = 60/540
Subtract the two like fractions:
729/540 - 60/540 = 729 - 60/540 = 669/540
After reducing the fraction, the answer is 223/180
In mixed form: 143/180

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