Add 8/42 and 4/9
8/42 + 4/9 is 40/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
8/42 = 8 × 3/42 × 3 = 24/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
4/9 = 4 × 14/9 × 14 = 56/126 - Add the two like fractions:
24/126 + 56/126 = 24 + 56/126 = 80/126 - 80/126 simplified gives 40/63
- So, 8/42 + 4/9 = 40/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42+4/9 8/42+8/9 8/84+4/9 8/42+4/18 24/42+4/9 8/42+12/9 8/42+4/27 40/42+4/9 8/42+20/9 8/42+4/45 56/42+4/9 8/42+28/9 8/42+4/63