Subtract 36/40 from 42/10
1st number: 4 2/10, 2nd number: 36/40
42/10 - 36/40 is 33/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
42/10 = 42 × 4/10 × 4 = 168/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
36/40 = 36 × 1/40 × 1 = 36/40 - Subtract the two like fractions:
168/40 - 36/40 = 168 - 36/40 = 132/40 - After reducing the fraction, the answer is 33/10
- In mixed form: 33/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10-36/40 42/10-72/40 42/20-36/40 42/10-36/80 42/30-36/40 42/50-36/40 42/70-36/40