Subtract 42/32 from 28/90
1st number: 28/90, 2nd number: 1 10/32
28/90 - 42/32 is -721/720.
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,
28/90 = 28 × 16/90 × 16 = 448/1440 - Likewise, for the 2nd fraction, since 32 × 45 = 1440,
42/32 = 42 × 45/32 × 45 = 1890/1440 - Subtract the two like fractions:
448/1440 - 1890/1440 = 448 - 1890/1440 = -1442/1440 - After reducing the fraction, the answer is -721/720
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