Subtract 70/5 from 30/12
1st number: 2 6/12, 2nd number: 14 0/5
30/12 - 70/5 is -23/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
30/12 = 30 × 5/12 × 5 = 150/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
70/5 = 70 × 12/5 × 12 = 840/60 - Subtract the two like fractions:
150/60 - 840/60 = 150 - 840/60 = -690/60 - After reducing the fraction, the answer is -23/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12-70/5 30/24-70/5 30/12-70/10 90/12-70/5 30/36-70/5 30/12-70/15 30/60-70/5 30/12-70/25 30/84-70/5 30/12-70/35