Add 63/5 and 15/42
1st number: 12 3/5, 2nd number: 15/42
63/5 + 15/42 is 907/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
63/5 = 63 × 42/5 × 42 = 2646/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
15/42 = 15 × 5/42 × 5 = 75/210 - Add the two like fractions:
2646/210 + 75/210 = 2646 + 75/210 = 2721/210 - 2721/210 simplified gives 907/70
- So, 63/5 + 15/42 = 907/70
In mixed form: 1267/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/5+30/42 63/10+15/42 63/5+15/84 63/5+45/42 63/15+15/42 63/5+75/42 63/25+15/42 63/35+15/42