Subtract 12/45 from 35/21
1st number: 1 14/21, 2nd number: 12/45
35/21 - 12/45 is 7/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 21 × 15 = 315,
35/21 = 35 × 15/21 × 15 = 525/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
12/45 = 12 × 7/45 × 7 = 84/315 - Subtract the two like fractions:
525/315 - 84/315 = 525 - 84/315 = 441/315 - After reducing the fraction, the answer is 7/5
- In mixed form: 12/5
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