Subtract 90/84 from 90/75
1st number: 1 15/75, 2nd number: 1 6/84
90/75 - 90/84 is 9/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 75 × 28 = 2100,
90/75 = 90 × 28/75 × 28 = 2520/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
90/84 = 90 × 25/84 × 25 = 2250/2100 - Subtract the two like fractions:
2520/2100 - 2250/2100 = 2520 - 2250/2100 = 270/2100 - After reducing the fraction, the answer is 9/70
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