Subtract 4/30 from 7/20
7/20 - 4/30 is 13/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
7/20 = 7 × 3/20 × 3 = 21/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
4/30 = 4 × 2/30 × 2 = 8/60 - Subtract the two like fractions:
21/60 - 8/60 = 21 - 8/60 = 13/60
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