Subtract 70/45 from 15/72
1st number: 15/72, 2nd number: 1 25/45
15/72 - 70/45 is -97/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
15/72 = 15 × 5/72 × 5 = 75/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
70/45 = 70 × 8/45 × 8 = 560/360 - Subtract the two like fractions:
75/360 - 560/360 = 75 - 560/360 = -485/360 - After reducing the fraction, the answer is -97/72
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