Subtract 24/60 from 21/18, Solve 1 3/18

Subtract 24/60 from 21/18

1^st number: 1 3/18, 2^nd number: 24/60

21/18 - 24/60 is 23/30.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 60 is 180

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 18 × 10 = 180,
21/18 = 21 × 10/18 × 10 = 210/180
Likewise, for the 2nd fraction, since 60 × 3 = 180,
24/60 = 24 × 3/60 × 3 = 72/180
Subtract the two like fractions:
210/180 - 72/180 = 210 - 72/180 = 138/180
After reducing the fraction, the answer is 23/30

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