Subtract 1/20 from 70/63
1st number: 1 7/63, 2nd number: 1/20
70/63 - 1/20 is 191/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
70/63 = 70 × 20/63 × 20 = 1400/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
1/20 = 1 × 63/20 × 63 = 63/1260 - Subtract the two like fractions:
1400/1260 - 63/1260 = 1400 - 63/1260 = 1337/1260 - After reducing the fraction, the answer is 191/180
- In mixed form: 111/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/63-2/20 70/63-1/40 70/63-3/20 70/63-1/60 70/63-5/20 70/63-7/20