Add 70/84 and 42/7
1st number: 70/84, 2nd number: 6 0/7
70/84 + 42/7 is 41/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
70/84 = 70 × 1/84 × 1 = 70/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
42/7 = 42 × 12/7 × 12 = 504/84 - Add the two like fractions:
70/84 + 504/84 = 70 + 504/84 = 574/84 - 574/84 simplified gives 41/6
- So, 70/84 + 42/7 = 41/6
In mixed form: 65/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/84+84/7 70/84+42/14 70/84+42/21 70/84+42/35 70/84+42/49