Subtract 21/70 from 72/5
1st number: 14 2/5, 2nd number: 21/70
72/5 - 21/70 is 141/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
72/5 = 72 × 14/5 × 14 = 1008/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
21/70 = 21 × 1/70 × 1 = 21/70 - Subtract the two like fractions:
1008/70 - 21/70 = 1008 - 21/70 = 987/70 - After reducing the fraction, the answer is 141/10
- In mixed form: 141/10
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