Subtract 3/40 from 10/30
10/30 - 3/40 is 31/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
10/30 = 10 × 4/30 × 4 = 40/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
3/40 = 3 × 3/40 × 3 = 9/120 - Subtract the two like fractions:
40/120 - 9/120 = 40 - 9/120 = 31/120
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