Subtract 20/70 from 75/5
1st number: 15 0/5, 2nd number: 20/70
75/5 - 20/70 is 103/7.
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,
75/5 = 75 × 14/5 × 14 = 1050/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
20/70 = 20 × 1/70 × 1 = 20/70 - Subtract the two like fractions:
1050/70 - 20/70 = 1050 - 20/70 = 1030/70 - After reducing the fraction, the answer is 103/7
- In mixed form: 145/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/5-40/70 75/10-20/70 75/5-60/70 75/15-20/70 75/25-20/70 75/35-20/70