Subtract 28/8 from 20/60
1st number: 20/60, 2nd number: 3 4/8
20/60 - 28/8 is -19/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 60 × 2 = 120,
20/60 = 20 × 2/60 × 2 = 40/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
28/8 = 28 × 15/8 × 15 = 420/120 - Subtract the two like fractions:
40/120 - 420/120 = 40 - 420/120 = -380/120 - After reducing the fraction, the answer is -19/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/60-28/8 20/60-56/8 20/60-28/16 20/60-84/8 20/60-28/24 20/60-28/40 20/60-28/56