Subtract 81/50 from 12/70
1st number: 12/70, 2nd number: 1 31/50
12/70 - 81/50 is -507/350.
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,
12/70 = 12 × 5/70 × 5 = 60/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
81/50 = 81 × 7/50 × 7 = 567/350 - Subtract the two like fractions:
60/350 - 567/350 = 60 - 567/350 = -507/350
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