Subtract 14/40 from 45/70
45/70 - 14/40 is 41/140.
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,
45/70 = 45 × 4/70 × 4 = 180/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
14/40 = 14 × 7/40 × 7 = 98/280 - Subtract the two like fractions:
180/280 - 98/280 = 180 - 98/280 = 82/280 - After reducing the fraction, the answer is 41/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70-14/40 45/70-28/40 45/70-14/80 45/70-42/40 45/70-70/40 45/70-98/40