Add 84/20 and 12/63
1st number: 4 4/20, 2nd number: 12/63
84/20 + 12/63 is 461/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
84/20 = 84 × 63/20 × 63 = 5292/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
12/63 = 12 × 20/63 × 20 = 240/1260 - Add the two like fractions:
5292/1260 + 240/1260 = 5292 + 240/1260 = 5532/1260 - 5532/1260 simplified gives 461/105
- So, 84/20 + 12/63 = 461/105
In mixed form: 441/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+24/63 84/40+12/63 84/20+36/63 84/60+12/63 84/20+60/63 84/20+84/63