Subtract 42/72 from 90/10
1st number: 9 0/10, 2nd number: 42/72
90/10 - 42/72 is 101/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
90/10 = 90 × 36/10 × 36 = 3240/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Subtract the two like fractions:
3240/360 - 210/360 = 3240 - 210/360 = 3030/360 - After reducing the fraction, the answer is 101/12
- In mixed form: 85/12
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