Subtract 70/15 from 18/9
1st number: 2 0/9, 2nd number: 4 10/15
18/9 - 70/15 is -8/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
18/9 = 18 × 5/9 × 5 = 90/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
70/15 = 70 × 3/15 × 3 = 210/45 - Subtract the two like fractions:
90/45 - 210/45 = 90 - 210/45 = -120/45 - After reducing the fraction, the answer is -8/3
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