Subtract 18/70 from 72/28
1st number: 2 16/28, 2nd number: 18/70
72/28 - 18/70 is 81/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
72/28 = 72 × 5/28 × 5 = 360/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
18/70 = 18 × 2/70 × 2 = 36/140 - Subtract the two like fractions:
360/140 - 36/140 = 360 - 36/140 = 324/140 - After reducing the fraction, the answer is 81/35
- In mixed form: 211/35
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