Subtract 2/30 from 72/42
1st number: 1 30/42, 2nd number: 2/30
72/42 - 2/30 is 173/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
72/42 = 72 × 5/42 × 5 = 360/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
2/30 = 2 × 7/30 × 7 = 14/210 - Subtract the two like fractions:
360/210 - 14/210 = 360 - 14/210 = 346/210 - After reducing the fraction, the answer is 173/105
- In mixed form: 168/105
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