Subtract 6/35 from 30/90
30/90 - 6/35 is 17/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
30/90 = 30 × 7/90 × 7 = 210/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
6/35 = 6 × 18/35 × 18 = 108/630 - Subtract the two like fractions:
210/630 - 108/630 = 210 - 108/630 = 102/630 - After reducing the fraction, the answer is 17/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/90-6/35 30/90-12/35 30/90-6/70 30/90-18/35 30/90-30/35 30/90-42/35