Subtract 21/72 from 70/10
1st number: 7 0/10, 2nd number: 21/72
70/10 - 21/72 is 161/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
70/10 = 70 × 36/10 × 36 = 2520/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
21/72 = 21 × 5/72 × 5 = 105/360 - Subtract the two like fractions:
2520/360 - 105/360 = 2520 - 105/360 = 2415/360 - After reducing the fraction, the answer is 161/24
- In mixed form: 617/24
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