Add 4/5 and 84/63
1st number: 4/5, 2nd number: 1 21/63
4/5 + 84/63 is 32/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 5 × 63 = 315,
4/5 = 4 × 63/5 × 63 = 252/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
84/63 = 84 × 5/63 × 5 = 420/315 - Add the two like fractions:
252/315 + 420/315 = 252 + 420/315 = 672/315 - 672/315 simplified gives 32/15
- So, 4/5 + 84/63 = 32/15
In mixed form: 22/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/5+84/63 4/10+84/63 12/5+84/63 4/15+84/63 20/5+84/63 4/25+84/63 28/5+84/63 4/35+84/63