Subtract 40/28 from 15/30
1st number: 15/30, 2nd number: 1 12/28
15/30 - 40/28 is -13/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
15/30 = 15 × 14/30 × 14 = 210/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
40/28 = 40 × 15/28 × 15 = 600/420 - Subtract the two like fractions:
210/420 - 600/420 = 210 - 600/420 = -390/420 - After reducing the fraction, the answer is -13/14
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