Subtract 2/5 from 7/30
7/30 - 2/5 is -1/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 5 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
7/30 = 7 × 1/30 × 1 = 7/30 - Likewise, for the 2nd fraction, since 5 × 6 = 30,
2/5 = 2 × 6/5 × 6 = 12/30 - Subtract the two like fractions:
7/30 - 12/30 = 7 - 12/30 = -5/30 - After reducing the fraction, the answer is -1/6
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