Add 45/70 and 6/28
45/70 + 6/28 is 6/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
45/70 = 45 × 2/70 × 2 = 90/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
6/28 = 6 × 5/28 × 5 = 30/140 - Add the two like fractions:
90/140 + 30/140 = 90 + 30/140 = 120/140 - 120/140 simplified gives 6/7
- So, 45/70 + 6/28 = 6/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+6/28 45/70+12/28 45/70+6/56 45/70+18/28 45/70+6/84 45/70+30/28 45/70+42/28