Subtract 9/50 from 90/70
1st number: 1 20/70, 2nd number: 9/50
90/70 - 9/50 is 387/350.
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,
90/70 = 90 × 5/70 × 5 = 450/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
9/50 = 9 × 7/50 × 7 = 63/350 - Subtract the two like fractions:
450/350 - 63/350 = 450 - 63/350 = 387/350 - In mixed form: 137/350
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