Subtract 30/28 from 21/50
1st number: 21/50, 2nd number: 1 2/28
21/50 - 30/28 is -114/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 28 is 700
Next, find the equivalent fraction of both fractional numbers with denominator 700 - For the 1st fraction, since 50 × 14 = 700,
21/50 = 21 × 14/50 × 14 = 294/700 - Likewise, for the 2nd fraction, since 28 × 25 = 700,
30/28 = 30 × 25/28 × 25 = 750/700 - Subtract the two like fractions:
294/700 - 750/700 = 294 - 750/700 = -456/700 - After reducing the fraction, the answer is -114/175
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