Subtract 36/27 from 30/20, Solve 1 10/20

Subtract 36/27 from 30/20

1^st number: 1 10/20, 2^nd number: 1 9/27

30/20 - 36/27 is 1/6.

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,
30/20 = 30 × 27/20 × 27 = 810/540
Likewise, for the 2nd fraction, since 27 × 20 = 540,
36/27 = 36 × 20/27 × 20 = 720/540
Subtract the two like fractions:
810/540 - 720/540 = 810 - 720/540 = 90/540
After reducing the fraction, the answer is 1/6

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