Subtract 15/70 from 18/9
1st number: 2 0/9, 2nd number: 15/70
18/9 - 15/70 is 25/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
18/9 = 18 × 70/9 × 70 = 1260/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
15/70 = 15 × 9/70 × 9 = 135/630 - Subtract the two like fractions:
1260/630 - 135/630 = 1260 - 135/630 = 1125/630 - After reducing the fraction, the answer is 25/14
- In mixed form: 111/14
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