Add 4/18 and 28/70
4/18 + 28/70 is 28/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
4/18 = 4 × 35/18 × 35 = 140/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
28/70 = 28 × 9/70 × 9 = 252/630 - Add the two like fractions:
140/630 + 252/630 = 140 + 252/630 = 392/630 - 392/630 simplified gives 28/45
- So, 4/18 + 28/70 = 28/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/18+28/70 4/18+56/70 4/36+28/70 12/18+28/70 4/18+84/70 4/54+28/70 20/18+28/70 4/90+28/70 28/18+28/70