Add 70/10 and 28/84
1st number: 7 0/10, 2nd number: 28/84
70/10 + 28/84 is 22/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
70/10 = 70 × 42/10 × 42 = 2940/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
28/84 = 28 × 5/84 × 5 = 140/420 - Add the two like fractions:
2940/420 + 140/420 = 2940 + 140/420 = 3080/420 - 3080/420 simplified gives 22/3
- So, 70/10 + 28/84 = 22/3
In mixed form: 71/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/10+56/84 70/20+28/84 70/30+28/84 70/50+28/84