Add 8/84 and 70/72
8/84 + 70/72 is 269/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 84 × 6 = 504,
8/84 = 8 × 6/84 × 6 = 48/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
70/72 = 70 × 7/72 × 7 = 490/504 - Add the two like fractions:
48/504 + 490/504 = 48 + 490/504 = 538/504 - 538/504 simplified gives 269/252
- So, 8/84 + 70/72 = 269/252
In mixed form: 117/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/84+70/72 24/84+70/72 40/84+70/72 56/84+70/72