Subtract 20/35 from 50/30
1st number: 1 20/30, 2nd number: 20/35
50/30 - 20/35 is 23/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
50/30 = 50 × 7/30 × 7 = 350/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
20/35 = 20 × 6/35 × 6 = 120/210 - Subtract the two like fractions:
350/210 - 120/210 = 350 - 120/210 = 230/210 - After reducing the fraction, the answer is 23/21
- In mixed form: 12/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30-40/35 50/60-20/35 50/30-20/70 50/30-60/35 50/90-20/35