Subtract 70/10 from 12/30
1st number: 12/30, 2nd number: 7 0/10
12/30 - 70/10 is -33/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
12/30 = 12 × 1/30 × 1 = 12/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
70/10 = 70 × 3/10 × 3 = 210/30 - Subtract the two like fractions:
12/30 - 210/30 = 12 - 210/30 = -198/30 - After reducing the fraction, the answer is -33/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30-70/10 12/60-70/10 12/30-70/20 36/30-70/10 12/90-70/10 12/30-70/30 60/30-70/10 12/30-70/50 84/30-70/10