Add 63/18 and 42/10
1st number: 3 9/18, 2nd number: 4 2/10
63/18 + 42/10 is 77/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
63/18 = 63 × 5/18 × 5 = 315/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
42/10 = 42 × 9/10 × 9 = 378/90 - Add the two like fractions:
315/90 + 378/90 = 315 + 378/90 = 693/90 - 693/90 simplified gives 77/10
- So, 63/18 + 42/10 = 77/10
In mixed form: 77/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/18+84/10 63/36+42/10 63/18+42/20 63/54+42/10 63/18+42/30 63/90+42/10 63/18+42/50 63/18+42/70