Subtract 12/21 from 35/9
1st number: 3 8/9, 2nd number: 12/21
35/9 - 12/21 is 209/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
35/9 = 35 × 7/9 × 7 = 245/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
12/21 = 12 × 3/21 × 3 = 36/63 - Subtract the two like fractions:
245/63 - 36/63 = 245 - 36/63 = 209/63 - In mixed form: 320/63
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