Subtract 36/9 from 42/10
1st number: 4 2/10, 2nd number: 4 0/9
42/10 - 36/9 is 1/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
42/10 = 42 × 9/10 × 9 = 378/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
36/9 = 36 × 10/9 × 10 = 360/90 - Subtract the two like fractions:
378/90 - 360/90 = 378 - 360/90 = 18/90 - After reducing the fraction, the answer is 1/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10-36/9 42/10-72/9 42/20-36/9 42/10-36/18 42/30-36/9 42/10-36/27 42/50-36/9 42/10-36/45 42/70-36/9 42/10-36/63