Subtract 3/84 from 50/80
50/80 - 3/84 is 33/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 84 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
50/80 = 50 × 21/80 × 21 = 1050/1680 - Likewise, for the 2nd fraction, since 84 × 20 = 1680,
3/84 = 3 × 20/84 × 20 = 60/1680 - Subtract the two like fractions:
1050/1680 - 60/1680 = 1050 - 60/1680 = 990/1680 - After reducing the fraction, the answer is 33/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/80-6/84 50/80-9/84 50/80-15/84 50/80-21/84