Add 28/80 and 49/63
28/80 + 49/63 is 203/180.
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,
28/80 = 28 × 63/80 × 63 = 1764/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
49/63 = 49 × 80/63 × 80 = 3920/5040 - Add the two like fractions:
1764/5040 + 3920/5040 = 1764 + 3920/5040 = 5684/5040 - 5684/5040 simplified gives 203/180
- So, 28/80 + 49/63 = 203/180
In mixed form: 123/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/80+49/63 28/80+98/63 84/80+49/63