Subtract 70/4 from 20/9
1st number: 2 2/9, 2nd number: 17 2/4
20/9 - 70/4 is -275/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
20/9 = 20 × 4/9 × 4 = 80/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
70/4 = 70 × 9/4 × 9 = 630/36 - Subtract the two like fractions:
80/36 - 630/36 = 80 - 630/36 = -550/36 - After reducing the fraction, the answer is -275/18
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