Add 4/18 and 16/21
4/18 + 16/21 is 62/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 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 21 × 6 = 126,
16/21 = 16 × 6/21 × 6 = 96/126 - Add the two like fractions:
28/126 + 96/126 = 28 + 96/126 = 124/126 - 124/126 simplified gives 62/63
- So, 4/18 + 16/21 = 62/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/18+16/21 4/18+32/21 4/36+16/21 4/18+16/42 12/18+16/21 4/18+48/21 4/54+16/21 4/18+16/63 20/18+16/21 4/18+80/21 4/90+16/21 28/18+16/21