Subtract 4/35 from 18/90
18/90 - 4/35 is 3/35.
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,
18/90 = 18 × 7/90 × 7 = 126/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
4/35 = 4 × 18/35 × 18 = 72/630 - Subtract the two like fractions:
126/630 - 72/630 = 126 - 72/630 = 54/630 - After reducing the fraction, the answer is 3/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/90-4/35 18/90-8/35 18/90-4/70 54/90-4/35 18/90-12/35 18/90-20/35 18/90-28/35