Add 70/84 and 50/28
1st number: 70/84, 2nd number: 1 22/28
70/84 + 50/28 is 55/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 28 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 28 × 3 = 84,
50/28 = 50 × 3/28 × 3 = 150/84 - Add the two like fractions:
70/84 + 150/84 = 70 + 150/84 = 220/84 - 220/84 simplified gives 55/21
- So, 70/84 + 50/28 = 55/21
In mixed form: 213/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/84+50/56 70/84+50/84