Subtract 30/12 from 70/30
1st number: 2 10/30, 2nd number: 2 6/12
70/30 - 30/12 is -1/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
70/30 = 70 × 2/30 × 2 = 140/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
30/12 = 30 × 5/12 × 5 = 150/60 - Subtract the two like fractions:
140/60 - 150/60 = 140 - 150/60 = -10/60 - After reducing the fraction, the answer is -1/6
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