Subtract 12/35 from 70/20
1st number: 3 10/20, 2nd number: 12/35
70/20 - 12/35 is 221/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
70/20 = 70 × 7/20 × 7 = 490/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
12/35 = 12 × 4/35 × 4 = 48/140 - Subtract the two like fractions:
490/140 - 48/140 = 490 - 48/140 = 442/140 - After reducing the fraction, the answer is 221/70
- In mixed form: 311/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20-24/35 70/40-12/35 70/20-12/70 70/20-36/35 70/60-12/35 70/20-60/35 70/20-84/35