Subtract 18/35 from 90/20
1st number: 4 10/20, 2nd number: 18/35
90/20 - 18/35 is 279/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
90/20 = 90 × 7/20 × 7 = 630/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
18/35 = 18 × 4/35 × 4 = 72/140 - Subtract the two like fractions:
630/140 - 72/140 = 630 - 72/140 = 558/140 - After reducing the fraction, the answer is 279/70
- In mixed form: 369/70
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