Add 75/30 and 42/20
1st number: 2 15/30, 2nd number: 2 2/20
75/30 + 42/20 is 23/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
75/30 = 75 × 2/30 × 2 = 150/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
42/20 = 42 × 3/20 × 3 = 126/60 - Add the two like fractions:
150/60 + 126/60 = 150 + 126/60 = 276/60 - 276/60 simplified gives 23/5
- So, 75/30 + 42/20 = 23/5
In mixed form: 43/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/30+84/20 75/60+42/20 75/30+42/40 75/90+42/20 75/30+42/60