Subtract 63/18 from 70/5
1st number: 14 0/5, 2nd number: 3 9/18
70/5 - 63/18 is 21/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
70/5 = 70 × 18/5 × 18 = 1260/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
63/18 = 63 × 5/18 × 5 = 315/90 - Subtract the two like fractions:
1260/90 - 315/90 = 1260 - 315/90 = 945/90 - After reducing the fraction, the answer is 21/2
- In mixed form: 101/2
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