Add 42/20 and 36/80
1st number: 2 2/20, 2nd number: 36/80
42/20 + 36/80 is 51/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
42/20 = 42 × 4/20 × 4 = 168/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
36/80 = 36 × 1/80 × 1 = 36/80 - Add the two like fractions:
168/80 + 36/80 = 168 + 36/80 = 204/80 - 204/80 simplified gives 51/20
- So, 42/20 + 36/80 = 51/20
In mixed form: 211/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+36/80 42/20+72/80 42/40+36/80 42/60+36/80