Add 5/70 and 18/84
5/70 + 18/84 is 2/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
5/70 = 5 × 6/70 × 6 = 30/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
18/84 = 18 × 5/84 × 5 = 90/420 - Add the two like fractions:
30/420 + 90/420 = 30 + 90/420 = 120/420 - 120/420 simplified gives 2/7
- So, 5/70 + 18/84 = 2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/70+18/84 5/70+36/84 15/70+18/84 5/70+54/84 25/70+18/84 5/70+90/84 35/70+18/84