Subtract 15/35 from 21/9
1st number: 2 3/9, 2nd number: 15/35
21/9 - 15/35 is 40/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 9 × 35 = 315,
21/9 = 21 × 35/9 × 35 = 735/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
15/35 = 15 × 9/35 × 9 = 135/315 - Subtract the two like fractions:
735/315 - 135/315 = 735 - 135/315 = 600/315 - After reducing the fraction, the answer is 40/21
- In mixed form: 119/21
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