Subtract 3/10 from 4/70
4/70 - 3/10 is -17/70.
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,
4/70 = 4 × 1/70 × 1 = 4/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
3/10 = 3 × 7/10 × 7 = 21/70 - Subtract the two like fractions:
4/70 - 21/70 = 4 - 21/70 = -17/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/70-3/10 4/70-6/10 4/70-3/20 12/70-3/10 4/70-9/10 4/70-3/30 20/70-3/10 4/70-15/10 4/70-3/50 28/70-3/10 4/70-21/10 4/70-3/70