Subtract 75/30 from 7/63
1st number: 7/63, 2nd number: 2 15/30
7/63 - 75/30 is -43/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
7/63 = 7 × 10/63 × 10 = 70/630 - Likewise, for the 2nd fraction, since 30 × 21 = 630,
75/30 = 75 × 21/30 × 21 = 1575/630 - Subtract the two like fractions:
70/630 - 1575/630 = 70 - 1575/630 = -1505/630 - After reducing the fraction, the answer is -43/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/63-75/30 7/63-75/60 21/63-75/30 7/63-75/90 35/63-75/30 49/63-75/30