Add 42/12 and 70/5
1st number: 3 6/12, 2nd number: 14 0/5
42/12 + 70/5 is 35/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
42/12 = 42 × 5/12 × 5 = 210/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
70/5 = 70 × 12/5 × 12 = 840/60 - Add the two like fractions:
210/60 + 840/60 = 210 + 840/60 = 1050/60 - 1050/60 simplified gives 35/2
- So, 42/12 + 70/5 = 35/2
In mixed form: 171/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+70/5 42/24+70/5 42/12+70/10 42/36+70/5 42/12+70/15 42/60+70/5 42/12+70/25 42/84+70/5 42/12+70/35