Subtract 24/45 from 16/21
16/21 - 24/45 is 8/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 21 × 15 = 315,
16/21 = 16 × 15/21 × 15 = 240/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
24/45 = 24 × 7/45 × 7 = 168/315 - Subtract the two like fractions:
240/315 - 168/315 = 240 - 168/315 = 72/315 - After reducing the fraction, the answer is 8/35
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