Subtract 21/49 from 15/5
1st number: 3 0/5, 2nd number: 21/49
15/5 - 21/49 is 18/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 49 is 245
Next, find the equivalent fraction of both fractional numbers with denominator 245 - For the 1st fraction, since 5 × 49 = 245,
15/5 = 15 × 49/5 × 49 = 735/245 - Likewise, for the 2nd fraction, since 49 × 5 = 245,
21/49 = 21 × 5/49 × 5 = 105/245 - Subtract the two like fractions:
735/245 - 105/245 = 735 - 105/245 = 630/245 - After reducing the fraction, the answer is 18/7
- In mixed form: 24/7
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