Add 20/5 and 12/63
1st number: 4 0/5, 2nd number: 12/63
20/5 + 12/63 is 88/21.
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,
20/5 = 20 × 63/5 × 63 = 1260/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
12/63 = 12 × 5/63 × 5 = 60/315 - Add the two like fractions:
1260/315 + 60/315 = 1260 + 60/315 = 1320/315 - 1320/315 simplified gives 88/21
- So, 20/5 + 12/63 = 88/21
In mixed form: 44/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5+12/63 20/5+24/63 20/10+12/63 60/5+12/63 20/5+36/63 20/15+12/63 20/5+60/63 20/25+12/63 20/5+84/63 20/35+12/63