Subtract 70/63 from 30/2
1st number: 15 0/2, 2nd number: 1 7/63
30/2 - 70/63 is 125/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 2 × 63 = 126,
30/2 = 30 × 63/2 × 63 = 1890/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
70/63 = 70 × 2/63 × 2 = 140/126 - Subtract the two like fractions:
1890/126 - 140/126 = 1890 - 140/126 = 1750/126 - After reducing the fraction, the answer is 125/9
- In mixed form: 138/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/2-70/63 30/4-70/63 90/2-70/63 30/6-70/63 30/10-70/63 30/14-70/63