Add 42/30 and 70/60
1st number: 1 12/30, 2nd number: 1 10/60
42/30 + 70/60 is 77/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
42/30 = 42 × 2/30 × 2 = 84/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
70/60 = 70 × 1/60 × 1 = 70/60 - Add the two like fractions:
84/60 + 70/60 = 84 + 70/60 = 154/60 - 154/60 simplified gives 77/30
- So, 42/30 + 70/60 = 77/30
In mixed form: 217/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+70/60 42/60+70/60 42/90+70/60