Subtract 14/8 from 45/70
1st number: 45/70, 2nd number: 1 6/8
45/70 - 14/8 is -31/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 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 8 × 35 = 280,
14/8 = 14 × 35/8 × 35 = 490/280 - Subtract the two like fractions:
180/280 - 490/280 = 180 - 490/280 = -310/280 - After reducing the fraction, the answer is -31/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70-14/8 45/70-28/8 45/70-14/16 45/70-42/8 45/70-14/24 45/70-70/8 45/70-14/40 45/70-98/8 45/70-14/56