Add 70/14 and 45/12
1st number: 5 0/14, 2nd number: 3 9/12
70/14 + 45/12 is 35/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
70/14 = 70 × 6/14 × 6 = 420/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
45/12 = 45 × 7/12 × 7 = 315/84 - Add the two like fractions:
420/84 + 315/84 = 420 + 315/84 = 735/84 - 735/84 simplified gives 35/4
- So, 70/14 + 45/12 = 35/4
In mixed form: 83/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/14+90/12 70/28+45/12 70/14+45/24 70/42+45/12 70/14+45/36 70/14+45/60 70/98+45/12 70/14+45/84