Add 70/30 and 42/12
1st number: 2 10/30, 2nd number: 3 6/12
70/30 + 42/12 is 35/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
70/30 = 70 × 2/30 × 2 = 140/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
42/12 = 42 × 5/12 × 5 = 210/60 - Add the two like fractions:
140/60 + 210/60 = 140 + 210/60 = 350/60 - 350/60 simplified gives 35/6
- So, 70/30 + 42/12 = 35/6
In mixed form: 55/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30+84/12 70/60+42/12 70/30+42/24 70/90+42/12 70/30+42/36 70/30+42/60 70/30+42/84