Subtract 21/60 from 20/18
1st number: 1 2/18, 2nd number: 21/60
20/18 - 21/60 is 137/180.
Steps for subtracting fractions
- 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,
20/18 = 20 × 10/18 × 10 = 200/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
21/60 = 21 × 3/60 × 3 = 63/180 - Subtract the two like fractions:
200/180 - 63/180 = 200 - 63/180 = 137/180
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