Subtract 9/21 from 72/35
1st number: 2 2/35, 2nd number: 9/21
72/35 - 9/21 is 57/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 35 × 3 = 105,
72/35 = 72 × 3/35 × 3 = 216/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
9/21 = 9 × 5/21 × 5 = 45/105 - Subtract the two like fractions:
216/105 - 45/105 = 216 - 45/105 = 171/105 - After reducing the fraction, the answer is 57/35
- In mixed form: 122/35
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