Subtract 25/90 from 8/35
8/35 - 25/90 is -31/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
8/35 = 8 × 18/35 × 18 = 144/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
25/90 = 25 × 7/90 × 7 = 175/630 - Subtract the two like fractions:
144/630 - 175/630 = 144 - 175/630 = -31/630
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