Add 56/75 and 70/84
56/75 + 70/84 is 79/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 75 × 28 = 2100,
56/75 = 56 × 28/75 × 28 = 1568/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
70/84 = 70 × 25/84 × 25 = 1750/2100 - Add the two like fractions:
1568/2100 + 1750/2100 = 1568 + 1750/2100 = 3318/2100 - 3318/2100 simplified gives 79/50
- So, 56/75 + 70/84 = 79/50
In mixed form: 129/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: