Add 80/50 and 70/84
1st number: 1 30/50, 2nd number: 70/84
80/50 + 70/84 is 73/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 50 × 42 = 2100,
80/50 = 80 × 42/50 × 42 = 3360/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
70/84 = 70 × 25/84 × 25 = 1750/2100 - Add the two like fractions:
3360/2100 + 1750/2100 = 3360 + 1750/2100 = 5110/2100 - 5110/2100 simplified gives 73/30
- So, 80/50 + 70/84 = 73/30
In mixed form: 213/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: