Subtract 3/60 from 42/45
42/45 - 3/60 is 53/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
42/45 = 42 × 4/45 × 4 = 168/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
3/60 = 3 × 3/60 × 3 = 9/180 - Subtract the two like fractions:
168/180 - 9/180 = 168 - 9/180 = 159/180 - After reducing the fraction, the answer is 53/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45-3/60 42/45-6/60 42/90-3/60 42/45-9/60 42/45-15/60 42/45-21/60