Subtract 12/45 from 42/6
1st number: 7 0/6, 2nd number: 12/45
42/6 - 12/45 is 101/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 45 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 45 × 2 = 90,
12/45 = 12 × 2/45 × 2 = 24/90 - Subtract the two like fractions:
630/90 - 24/90 = 630 - 24/90 = 606/90 - After reducing the fraction, the answer is 101/15
- In mixed form: 611/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/6-12/45 42/6-24/45 42/12-12/45 42/6-12/90 42/6-36/45 42/18-12/45 42/6-60/45 42/30-12/45 42/6-84/45