Add 5/70 and 4/84
5/70 + 4/84 is 5/42.
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,
4/84 = 4 × 5/84 × 5 = 20/420 - Add the two like fractions:
30/420 + 20/420 = 30 + 20/420 = 50/420 - 50/420 simplified gives 5/42
- So, 5/70 + 4/84 = 5/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/70+4/84 5/70+8/84 15/70+4/84 5/70+12/84 25/70+4/84 5/70+20/84 35/70+4/84 5/70+28/84