Subtract 70/90 from 70/18
1st number: 3 16/18, 2nd number: 70/90
70/18 - 70/90 is 28/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
70/18 = 70 × 5/18 × 5 = 350/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
70/90 = 70 × 1/90 × 1 = 70/90 - Subtract the two like fractions:
350/90 - 70/90 = 350 - 70/90 = 280/90 - After reducing the fraction, the answer is 28/9
- In mixed form: 31/9
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