Subtract 70/28 from 50/30
1st number: 1 20/30, 2nd number: 2 14/28
50/30 - 70/28 is -5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
50/30 = 50 × 14/30 × 14 = 700/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
70/28 = 70 × 15/28 × 15 = 1050/420 - Subtract the two like fractions:
700/420 - 1050/420 = 700 - 1050/420 = -350/420 - After reducing the fraction, the answer is -5/6
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