Subtract 20/72 from 7/3, Solve 2 1/3

Subtract 20/72 from 7/3

1^st number: 2 1/3, 2^nd number: 20/72

7/3 - 20/72 is 37/18.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 3 × 24 = 72,
7/3 = 7 × 24/3 × 24 = 168/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72
Subtract the two like fractions:
168/72 - 20/72 = 168 - 20/72 = 148/72
After reducing the fraction, the answer is 37/18
In mixed form: 21/18

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