Subtract 50/63 from 70/84
70/84 - 50/63 is 5/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
70/84 = 70 × 3/84 × 3 = 210/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
50/63 = 50 × 4/63 × 4 = 200/252 - Subtract the two like fractions:
210/252 - 200/252 = 210 - 200/252 = 10/252 - After reducing the fraction, the answer is 5/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: