Subtract 63/35 from 90/28
1st number: 3 6/28, 2nd number: 1 28/35
90/28 - 63/35 is 99/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
90/28 = 90 × 5/28 × 5 = 450/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
63/35 = 63 × 4/35 × 4 = 252/140 - Subtract the two like fractions:
450/140 - 252/140 = 450 - 252/140 = 198/140 - After reducing the fraction, the answer is 99/70
- In mixed form: 129/70
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