Subtract 90/7 from 9/25
1st number: 9/25, 2nd number: 12 6/7
9/25 - 90/7 is -2187/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 7 is 175
Next, find the equivalent fraction of both fractional numbers with denominator 175 - For the 1st fraction, since 25 × 7 = 175,
9/25 = 9 × 7/25 × 7 = 63/175 - Likewise, for the 2nd fraction, since 7 × 25 = 175,
90/7 = 90 × 25/7 × 25 = 2250/175 - Subtract the two like fractions:
63/175 - 2250/175 = 63 - 2250/175 = -2187/175
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