Add 35/70 and 15/12
1st number: 35/70, 2nd number: 1 3/12
35/70 + 15/12 is 7/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
35/70 = 35 × 6/70 × 6 = 210/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
15/12 = 15 × 35/12 × 35 = 525/420 - Add the two like fractions:
210/420 + 525/420 = 210 + 525/420 = 735/420 - 735/420 simplified gives 7/4
- So, 35/70 + 15/12 = 7/4
In mixed form: 13/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 35/70+30/12 35/70+15/24 35/70+45/12 35/70+15/36 35/70+75/12 35/70+15/60 35/70+15/84