Subtract 20/5 from 90/14
1st number: 6 6/14, 2nd number: 4 0/5
90/14 - 20/5 is 17/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
90/14 = 90 × 5/14 × 5 = 450/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
20/5 = 20 × 14/5 × 14 = 280/70 - Subtract the two like fractions:
450/70 - 280/70 = 450 - 280/70 = 170/70 - After reducing the fraction, the answer is 17/7
- In mixed form: 23/7
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