Add 84/80 and 28/63
1st number: 1 4/80, 2nd number: 28/63
84/80 + 28/63 is 269/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 63 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 80 × 63 = 5040,
84/80 = 84 × 63/80 × 63 = 5292/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
28/63 = 28 × 80/63 × 80 = 2240/5040 - Add the two like fractions:
5292/5040 + 2240/5040 = 5292 + 2240/5040 = 7532/5040 - 7532/5040 simplified gives 269/180
- So, 84/80 + 28/63 = 269/180
In mixed form: 189/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/80+56/63 84/80+84/63