Subtract 90/42 from 80/5
1st number: 16 0/5, 2nd number: 2 6/42
80/5 - 90/42 is 97/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
80/5 = 80 × 42/5 × 42 = 3360/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
90/42 = 90 × 5/42 × 5 = 450/210 - Subtract the two like fractions:
3360/210 - 450/210 = 3360 - 450/210 = 2910/210 - After reducing the fraction, the answer is 97/7
- In mixed form: 136/7
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