Subtract 18/30 from 75/7
1st number: 10 5/7, 2nd number: 18/30
75/7 - 18/30 is 354/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
75/7 = 75 × 30/7 × 30 = 2250/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
18/30 = 18 × 7/30 × 7 = 126/210 - Subtract the two like fractions:
2250/210 - 126/210 = 2250 - 126/210 = 2124/210 - After reducing the fraction, the answer is 354/35
- In mixed form: 104/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/7-36/30 75/14-18/30 75/7-18/60 75/7-54/30 75/21-18/30 75/7-18/90 75/7-90/30 75/35-18/30 75/49-18/30