Subtract 50/70 from 14/20
14/20 - 50/70 is -1/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
14/20 = 14 × 7/20 × 7 = 98/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
50/70 = 50 × 2/70 × 2 = 100/140 - Subtract the two like fractions:
98/140 - 100/140 = 98 - 100/140 = -2/140 - After reducing the fraction, the answer is -1/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/20-50/70 14/40-50/70 42/20-50/70 14/60-50/70 70/20-50/70 98/20-50/70