Subtract 42/20 from 5/75
1st number: 5/75, 2nd number: 2 2/20
5/75 - 42/20 is -61/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
5/75 = 5 × 4/75 × 4 = 20/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
42/20 = 42 × 15/20 × 15 = 630/300 - Subtract the two like fractions:
20/300 - 630/300 = 20 - 630/300 = -610/300 - After reducing the fraction, the answer is -61/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/75-42/20 5/75-84/20 5/75-42/40 15/75-42/20 5/75-42/60 25/75-42/20 35/75-42/20