Subtract 20/30 from 56/8
1st number: 7 0/8, 2nd number: 20/30
56/8 - 20/30 is 19/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
56/8 = 56 × 15/8 × 15 = 840/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
20/30 = 20 × 4/30 × 4 = 80/120 - Subtract the two like fractions:
840/120 - 80/120 = 840 - 80/120 = 760/120 - After reducing the fraction, the answer is 19/3
- In mixed form: 61/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8-40/30 56/16-20/30 56/8-20/60 56/8-60/30 56/24-20/30 56/8-20/90 56/40-20/30