Add 18/35 and 70/84
18/35 + 70/84 is 283/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
18/35 = 18 × 12/35 × 12 = 216/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
70/84 = 70 × 5/84 × 5 = 350/420 - Add the two like fractions:
216/420 + 350/420 = 216 + 350/420 = 566/420 - 566/420 simplified gives 283/210
- So, 18/35 + 70/84 = 283/210
In mixed form: 173/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/35+70/84 18/70+70/84 54/35+70/84 90/35+70/84