Subtract 80/42 from 5/63
1st number: 5/63, 2nd number: 1 38/42
5/63 - 80/42 is -115/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
5/63 = 5 × 2/63 × 2 = 10/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
80/42 = 80 × 3/42 × 3 = 240/126 - Subtract the two like fractions:
10/126 - 240/126 = 10 - 240/126 = -230/126 - After reducing the fraction, the answer is -115/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/63-80/42 5/63-80/84 15/63-80/42 25/63-80/42 35/63-80/42