Subtract 45/36 from 42/8
1st number: 5 2/8, 2nd number: 1 9/36
42/8 - 45/36 is 4/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
42/8 = 42 × 9/8 × 9 = 378/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
45/36 = 45 × 2/36 × 2 = 90/72 - Subtract the two like fractions:
378/72 - 90/72 = 378 - 90/72 = 288/72 - After reducing the fraction, the answer is 4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8-45/36 42/8-90/36 42/16-45/36 42/8-45/72 42/24-45/36 42/40-45/36 42/56-45/36