Add 42/20 and 36/15
1st number: 2 2/20, 2nd number: 2 6/15
42/20 + 36/15 is 9/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
42/20 = 42 × 3/20 × 3 = 126/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
36/15 = 36 × 4/15 × 4 = 144/60 - Add the two like fractions:
126/60 + 144/60 = 126 + 144/60 = 270/60 - 270/60 simplified gives 9/2
- So, 42/20 + 36/15 = 9/2
In mixed form: 41/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+36/15 42/20+72/15 42/40+36/15 42/20+36/30 42/60+36/15 42/20+36/45 42/20+36/75