Subtract 3/20 from 12/49
12/49 - 3/20 is 93/980.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 49 × 20 = 980,
12/49 = 12 × 20/49 × 20 = 240/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
3/20 = 3 × 49/20 × 49 = 147/980 - Subtract the two like fractions:
240/980 - 147/980 = 240 - 147/980 = 93/980
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/49-3/20 12/49-6/20 12/98-3/20 12/49-3/40 36/49-3/20 12/49-9/20 12/49-3/60 60/49-3/20 12/49-15/20 84/49-3/20 12/49-21/20