Subtract 20/8 from 49/30
1st number: 1 19/30, 2nd number: 2 4/8
49/30 - 20/8 is -13/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
49/30 = 49 × 4/30 × 4 = 196/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
20/8 = 20 × 15/8 × 15 = 300/120 - Subtract the two like fractions:
196/120 - 300/120 = 196 - 300/120 = -104/120 - After reducing the fraction, the answer is -13/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/30-20/8 49/30-40/8 49/60-20/8 49/30-20/16 49/30-60/8 49/90-20/8 49/30-20/24 49/30-20/40 49/30-20/56