Subtract 90/30 from 70/90
1st number: 70/90, 2nd number: 3 0/30
70/90 - 90/30 is -20/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
70/90 = 70 × 1/90 × 1 = 70/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
90/30 = 90 × 3/30 × 3 = 270/90 - Subtract the two like fractions:
70/90 - 270/90 = 70 - 270/90 = -200/90 - After reducing the fraction, the answer is -20/9
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