Add 63/8 and 45/18
1st number: 7 7/8, 2nd number: 2 9/18
63/8 + 45/18 is 83/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
63/8 = 63 × 9/8 × 9 = 567/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
45/18 = 45 × 4/18 × 4 = 180/72 - Add the two like fractions:
567/72 + 180/72 = 567 + 180/72 = 747/72 - 747/72 simplified gives 83/8
- So, 63/8 + 45/18 = 83/8
In mixed form: 103/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/8+90/18 63/16+45/18 63/8+45/36 63/24+45/18 63/8+45/54 63/40+45/18 63/8+45/90 63/56+45/18