Subtract 21/45 from 7/32
7/32 - 21/45 is -119/480.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 45 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 32 × 45 = 1440,
7/32 = 7 × 45/32 × 45 = 315/1440 - Likewise, for the 2nd fraction, since 45 × 32 = 1440,
21/45 = 21 × 32/45 × 32 = 672/1440 - Subtract the two like fractions:
315/1440 - 672/1440 = 315 - 672/1440 = -357/1440 - After reducing the fraction, the answer is -119/480
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