Subtract 81/70 from 90/50
1st number: 1 40/50, 2nd number: 1 11/70
90/50 - 81/70 is 9/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 50 × 7 = 350,
90/50 = 90 × 7/50 × 7 = 630/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
81/70 = 81 × 5/70 × 5 = 405/350 - Subtract the two like fractions:
630/350 - 405/350 = 630 - 405/350 = 225/350 - After reducing the fraction, the answer is 9/14
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