Subtract 16/35 from 20/45
20/45 - 16/35 is -4/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
20/45 = 20 × 7/45 × 7 = 140/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
16/35 = 16 × 9/35 × 9 = 144/315 - Subtract the two like fractions:
140/315 - 144/315 = 140 - 144/315 = -4/315
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