Subtract 3/10 from 12/70
12/70 - 3/10 is -9/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
12/70 = 12 × 1/70 × 1 = 12/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
3/10 = 3 × 7/10 × 7 = 21/70 - Subtract the two like fractions:
12/70 - 21/70 = 12 - 21/70 = -9/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70-3/10 12/70-6/10 12/70-3/20 36/70-3/10 12/70-9/10 12/70-3/30 60/70-3/10 12/70-15/10 12/70-3/50 84/70-3/10 12/70-21/10 12/70-3/70