Subtract 3/45 from 60/42
1st number: 1 18/42, 2nd number: 3/45
60/42 - 3/45 is 143/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
60/42 = 60 × 15/42 × 15 = 900/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
3/45 = 3 × 14/45 × 14 = 42/630 - Subtract the two like fractions:
900/630 - 42/630 = 900 - 42/630 = 858/630 - After reducing the fraction, the answer is 143/105
- In mixed form: 138/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42-6/45 60/84-3/45 60/42-3/90 60/42-9/45 60/42-15/45 60/42-21/45