Subtract 2/16 from 21/30
21/30 - 2/16 is 23/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
21/30 = 21 × 8/30 × 8 = 168/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
2/16 = 2 × 15/16 × 15 = 30/240 - Subtract the two like fractions:
168/240 - 30/240 = 168 - 30/240 = 138/240 - After reducing the fraction, the answer is 23/40
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