Add 75/12 and 70/7
1st number: 6 3/12, 2nd number: 10 0/7
75/12 + 70/7 is 65/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
75/12 = 75 × 7/12 × 7 = 525/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
70/7 = 70 × 12/7 × 12 = 840/84 - Add the two like fractions:
525/84 + 840/84 = 525 + 840/84 = 1365/84 - 1365/84 simplified gives 65/4
- So, 75/12 + 70/7 = 65/4
In mixed form: 161/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/24+70/7 75/12+70/14 75/36+70/7 75/12+70/21 75/60+70/7 75/12+70/35 75/84+70/7 75/12+70/49