Subtract 81/50 from 40/70
1st number: 40/70, 2nd number: 1 31/50
40/70 - 81/50 is -367/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 50 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
40/70 = 40 × 5/70 × 5 = 200/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
81/50 = 81 × 7/50 × 7 = 567/350 - Subtract the two like fractions:
200/350 - 567/350 = 200 - 567/350 = -367/350
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Related: 80/70-81/50