Add 84/5 and 80/63
1st number: 16 4/5, 2nd number: 1 17/63
84/5 + 80/63 is 5692/315.
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,
84/5 = 84 × 63/5 × 63 = 5292/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
80/63 = 80 × 5/63 × 5 = 400/315 - Add the two like fractions:
5292/315 + 400/315 = 5292 + 400/315 = 5692/315 - So, 84/5 + 80/63 = 5692/315
In mixed form: 1822/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+80/63 84/15+80/63 84/25+80/63 84/35+80/63