Subtract 7/45 from 20/9
1st number: 2 2/9, 2nd number: 7/45
20/9 - 7/45 is 31/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
20/9 = 20 × 5/9 × 5 = 100/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
7/45 = 7 × 1/45 × 1 = 7/45 - Subtract the two like fractions:
100/45 - 7/45 = 100 - 7/45 = 93/45 - After reducing the fraction, the answer is 31/15
- In mixed form: 21/15
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