Add 28/42 and 6/70
28/42 + 6/70 is 79/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
28/42 = 28 × 5/42 × 5 = 140/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
6/70 = 6 × 3/70 × 3 = 18/210 - Add the two like fractions:
140/210 + 18/210 = 140 + 18/210 = 158/210 - 158/210 simplified gives 79/105
- So, 28/42 + 6/70 = 79/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+6/70 28/42+12/70 28/84+6/70 84/42+6/70 28/42+18/70 28/42+30/70 28/42+42/70