Add 70/4 and 84/7
1st number: 17 2/4, 2nd number: 12 0/7
70/4 + 84/7 is 59/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
70/4 = 70 × 7/4 × 7 = 490/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
84/7 = 84 × 4/7 × 4 = 336/28 - Add the two like fractions:
490/28 + 336/28 = 490 + 336/28 = 826/28 - 826/28 simplified gives 59/2
- So, 70/4 + 84/7 = 59/2
In mixed form: 291/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/8+84/7 70/4+84/14 70/12+84/7 70/4+84/21 70/20+84/7 70/4+84/35 70/28+84/7 70/4+84/49