Subtract 28/35 from 90/40
1st number: 2 10/40, 2nd number: 28/35
90/40 - 28/35 is 29/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
90/40 = 90 × 7/40 × 7 = 630/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
28/35 = 28 × 8/35 × 8 = 224/280 - Subtract the two like fractions:
630/280 - 224/280 = 630 - 224/280 = 406/280 - After reducing the fraction, the answer is 29/20
- In mixed form: 19/20
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