Subtract 56/30 from 50/21
1st number: 2 8/21, 2nd number: 1 26/30
50/21 - 56/30 is 18/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
50/21 = 50 × 10/21 × 10 = 500/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
56/30 = 56 × 7/30 × 7 = 392/210 - Subtract the two like fractions:
500/210 - 392/210 = 500 - 392/210 = 108/210 - After reducing the fraction, the answer is 18/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42-56/30 50/21-56/60 50/63-56/30 50/21-56/90