Subtract 21/96 from 7/45
7/45 - 21/96 is -91/1440.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 96 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 45 × 32 = 1440,
7/45 = 7 × 32/45 × 32 = 224/1440 - Likewise, for the 2nd fraction, since 96 × 15 = 1440,
21/96 = 21 × 15/96 × 15 = 315/1440 - Subtract the two like fractions:
224/1440 - 315/1440 = 224 - 315/1440 = -91/1440
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