Add 4/18 and 40/63
4/18 + 40/63 is 6/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
4/18 = 4 × 7/18 × 7 = 28/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
40/63 = 40 × 2/63 × 2 = 80/126 - Add the two like fractions:
28/126 + 80/126 = 28 + 80/126 = 108/126 - 108/126 simplified gives 6/7
- So, 4/18 + 40/63 = 6/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/18+40/63 4/18+80/63 4/36+40/63 12/18+40/63 4/54+40/63 20/18+40/63 4/90+40/63 28/18+40/63