Subtract 6/4 from 80/70
1st number: 1 10/70, 2nd number: 1 2/4
80/70 - 6/4 is -5/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 4 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
80/70 = 80 × 2/70 × 2 = 160/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
6/4 = 6 × 35/4 × 35 = 210/140 - Subtract the two like fractions:
160/140 - 210/140 = 160 - 210/140 = -50/140 - After reducing the fraction, the answer is -5/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70-12/4 80/70-6/8 80/70-18/4 80/70-6/12 80/70-30/4 80/70-6/20 80/70-42/4 80/70-6/28