Subtract 20/42 from 72/35
1st number: 2 2/35, 2nd number: 20/42
72/35 - 20/42 is 166/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
72/35 = 72 × 6/35 × 6 = 432/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
20/42 = 20 × 5/42 × 5 = 100/210 - Subtract the two like fractions:
432/210 - 100/210 = 432 - 100/210 = 332/210 - After reducing the fraction, the answer is 166/105
- In mixed form: 161/105
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