Subtract 90/27 from 70/75
1st number: 70/75, 2nd number: 3 9/27
70/75 - 90/27 is -12/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 27 is 675
Next, find the equivalent fraction of both fractional numbers with denominator 675 - For the 1st fraction, since 75 × 9 = 675,
70/75 = 70 × 9/75 × 9 = 630/675 - Likewise, for the 2nd fraction, since 27 × 25 = 675,
90/27 = 90 × 25/27 × 25 = 2250/675 - Subtract the two like fractions:
630/675 - 2250/675 = 630 - 2250/675 = -1620/675 - After reducing the fraction, the answer is -12/5
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