Subtract 14/40 from 3/70
3/70 - 14/40 is -43/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
3/70 = 3 × 4/70 × 4 = 12/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
14/40 = 14 × 7/40 × 7 = 98/280 - Subtract the two like fractions:
12/280 - 98/280 = 12 - 98/280 = -86/280 - After reducing the fraction, the answer is -43/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/70-14/40 3/70-28/40 3/70-14/80 9/70-14/40 3/70-42/40 15/70-14/40 3/70-70/40 21/70-14/40 3/70-98/40