Add 30/35 and 10/12
30/35 + 10/12 is 71/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
30/35 = 30 × 12/35 × 12 = 360/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
10/12 = 10 × 35/12 × 35 = 350/420 - Add the two like fractions:
360/420 + 350/420 = 360 + 350/420 = 710/420 - 710/420 simplified gives 71/42
- So, 30/35 + 10/12 = 71/42
In mixed form: 129/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/35+10/12 30/35+20/12 30/70+10/12 30/35+10/24 90/35+10/12 30/35+30/12 30/35+10/36 30/35+50/12 30/35+10/60 30/35+70/12 30/35+10/84