Subtract 60/18 from 90/35
1st number: 2 20/35, 2nd number: 3 6/18
90/35 - 60/18 is -16/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
90/35 = 90 × 18/35 × 18 = 1620/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
60/18 = 60 × 35/18 × 35 = 2100/630 - Subtract the two like fractions:
1620/630 - 2100/630 = 1620 - 2100/630 = -480/630 - After reducing the fraction, the answer is -16/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70-60/18 90/35-60/36 90/35-60/54 90/35-60/90