Subtract 4/42 from 35/90
35/90 - 4/42 is 37/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
35/90 = 35 × 7/90 × 7 = 245/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
4/42 = 4 × 15/42 × 15 = 60/630 - Subtract the two like fractions:
245/630 - 60/630 = 245 - 60/630 = 185/630 - After reducing the fraction, the answer is 37/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90-4/42 35/90-8/42 35/90-4/84 35/90-12/42 35/90-20/42 35/90-28/42