Add 4/9 and 40/70
4/9 + 40/70 is 64/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
4/9 = 4 × 70/9 × 70 = 280/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
40/70 = 40 × 9/70 × 9 = 360/630 - Add the two like fractions:
280/630 + 360/630 = 280 + 360/630 = 640/630 - 640/630 simplified gives 64/63
- So, 4/9 + 40/70 = 64/63
In mixed form: 11/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/9+40/70 4/9+80/70 4/18+40/70 12/9+40/70 4/27+40/70 20/9+40/70 4/45+40/70 28/9+40/70 4/63+40/70