Subtract 42/25 from 1/90
1st number: 1/90, 2nd number: 1 17/25
1/90 - 42/25 is -751/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 25 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
1/90 = 1 × 5/90 × 5 = 5/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
42/25 = 42 × 18/25 × 18 = 756/450 - Subtract the two like fractions:
5/450 - 756/450 = 5 - 756/450 = -751/450
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