Subtract 50/30 from 3/84
1st number: 3/84, 2nd number: 1 20/30
3/84 - 50/30 is -137/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
50/30 = 50 × 14/30 × 14 = 700/420 - Subtract the two like fractions:
15/420 - 700/420 = 15 - 700/420 = -685/420 - After reducing the fraction, the answer is -137/84
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