Subtract 7/45 from 21/15
1st number: 1 6/15, 2nd number: 7/45
21/15 - 7/45 is 56/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
21/15 = 21 × 3/15 × 3 = 63/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
7/45 = 7 × 1/45 × 1 = 7/45 - Subtract the two like fractions:
63/45 - 7/45 = 63 - 7/45 = 56/45 - In mixed form: 111/45
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