Subtract 21/30 from 10/16
10/16 - 21/30 is -3/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
10/16 = 10 × 15/16 × 15 = 150/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
21/30 = 21 × 8/30 × 8 = 168/240 - Subtract the two like fractions:
150/240 - 168/240 = 150 - 168/240 = -18/240 - After reducing the fraction, the answer is -3/40
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