Subtract 42/50 from 21/32
21/32 - 42/50 is -147/800.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 50 is 800
Next, find the equivalent fraction of both fractional numbers with denominator 800 - For the 1st fraction, since 32 × 25 = 800,
21/32 = 21 × 25/32 × 25 = 525/800 - Likewise, for the 2nd fraction, since 50 × 16 = 800,
42/50 = 42 × 16/50 × 16 = 672/800 - Subtract the two like fractions:
525/800 - 672/800 = 525 - 672/800 = -147/800
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