Subtract 18/72 from 90/10
1st number: 9 0/10, 2nd number: 18/72
90/10 - 18/72 is 35/4.
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,
18/72 = 18 × 5/72 × 5 = 90/360 - Subtract the two like fractions:
3240/360 - 90/360 = 3240 - 90/360 = 3150/360 - After reducing the fraction, the answer is 35/4
- In mixed form: 83/4
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