Subtract 2/90 from 42/6
1st number: 7 0/6, 2nd number: 2/90
42/6 - 2/90 is 314/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
42/6 = 42 × 15/6 × 15 = 630/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
2/90 = 2 × 1/90 × 1 = 2/90 - Subtract the two like fractions:
630/90 - 2/90 = 630 - 2/90 = 628/90 - After reducing the fraction, the answer is 314/45
- In mixed form: 644/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/6-2/90 42/6-4/90 42/12-2/90 42/6-6/90 42/18-2/90 42/6-10/90 42/30-2/90 42/6-14/90