Add 70/30 and 12/14
1st number: 2 10/30, 2nd number: 12/14
70/30 + 12/14 is 67/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
12/14 = 12 × 15/14 × 15 = 180/210 - Add the two like fractions:
490/210 + 180/210 = 490 + 180/210 = 670/210 - 670/210 simplified gives 67/21
- So, 70/30 + 12/14 = 67/21
In mixed form: 34/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30+24/14 70/60+12/14 70/30+12/28 70/30+36/14 70/90+12/14 70/30+12/42 70/30+60/14 70/30+12/70 70/30+84/14 70/30+12/98