Subtract 15/4 from 70/45
1st number: 1 25/45, 2nd number: 3 3/4
70/45 - 15/4 is -79/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
70/45 = 70 × 4/45 × 4 = 280/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
15/4 = 15 × 45/4 × 45 = 675/180 - Subtract the two like fractions:
280/180 - 675/180 = 280 - 675/180 = -395/180 - After reducing the fraction, the answer is -79/36
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