Subtract 20/9 from 30/28
1st number: 1 2/28, 2nd number: 2 2/9
30/28 - 20/9 is -145/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
30/28 = 30 × 9/28 × 9 = 270/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
20/9 = 20 × 28/9 × 28 = 560/252 - Subtract the two like fractions:
270/252 - 560/252 = 270 - 560/252 = -290/252 - After reducing the fraction, the answer is -145/126
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