Add 12/30 and 3/7
12/30 + 3/7 is 29/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
12/30 = 12 × 7/30 × 7 = 84/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
3/7 = 3 × 30/7 × 30 = 90/210 - Add the two like fractions:
84/210 + 90/210 = 84 + 90/210 = 174/210 - 174/210 simplified gives 29/35
- So, 12/30 + 3/7 = 29/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30+3/7 12/30+6/7 12/60+3/7 12/30+3/14 36/30+3/7 12/30+9/7 12/90+3/7 12/30+3/21 60/30+3/7 12/30+15/7 12/30+3/35 84/30+3/7 12/30+21/7 12/30+3/49