Subtract 8/72 from 90/75
1st number: 1 15/75, 2nd number: 8/72
90/75 - 8/72 is 49/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 75 × 24 = 1800,
90/75 = 90 × 24/75 × 24 = 2160/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
8/72 = 8 × 25/72 × 25 = 200/1800 - Subtract the two like fractions:
2160/1800 - 200/1800 = 2160 - 200/1800 = 1960/1800 - After reducing the fraction, the answer is 49/45
- In mixed form: 14/45
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