Subtract 35/32 from 21/90
1st number: 21/90, 2nd number: 1 3/32
21/90 - 35/32 is -413/480.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 32 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 90 × 16 = 1440,
21/90 = 21 × 16/90 × 16 = 336/1440 - Likewise, for the 2nd fraction, since 32 × 45 = 1440,
35/32 = 35 × 45/32 × 45 = 1575/1440 - Subtract the two like fractions:
336/1440 - 1575/1440 = 336 - 1575/1440 = -1239/1440 - After reducing the fraction, the answer is -413/480
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