Add 20/30 and 42/75
20/30 + 42/75 is 92/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 75 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
20/30 = 20 × 5/30 × 5 = 100/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
42/75 = 42 × 2/75 × 2 = 84/150 - Add the two like fractions:
100/150 + 84/150 = 100 + 84/150 = 184/150 - 184/150 simplified gives 92/75
- So, 20/30 + 42/75 = 92/75
In mixed form: 117/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30+42/75 20/30+84/75 20/60+42/75 60/30+42/75 20/90+42/75