Add 75/20 and 42/60
1st number: 3 15/20, 2nd number: 42/60
75/20 + 42/60 is 89/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
75/20 = 75 × 3/20 × 3 = 225/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
42/60 = 42 × 1/60 × 1 = 42/60 - Add the two like fractions:
225/60 + 42/60 = 225 + 42/60 = 267/60 - 267/60 simplified gives 89/20
- So, 75/20 + 42/60 = 89/20
In mixed form: 49/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/20+84/60 75/40+42/60 75/60+42/60