Subtract 80/70 from 3/5
1st number: 3/5, 2nd number: 1 10/70
3/5 - 80/70 is -19/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
3/5 = 3 × 14/5 × 14 = 42/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
80/70 = 80 × 1/70 × 1 = 80/70 - Subtract the two like fractions:
42/70 - 80/70 = 42 - 80/70 = -38/70 - After reducing the fraction, the answer is -19/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/5-80/70 3/10-80/70 9/5-80/70 3/15-80/70 15/5-80/70 3/25-80/70 21/5-80/70 3/35-80/70