Add 28/60 and 45/63
28/60 + 45/63 is 124/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 60 × 21 = 1260,
28/60 = 28 × 21/60 × 21 = 588/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
45/63 = 45 × 20/63 × 20 = 900/1260 - Add the two like fractions:
588/1260 + 900/1260 = 588 + 900/1260 = 1488/1260 - 1488/1260 simplified gives 124/105
- So, 28/60 + 45/63 = 124/105
In mixed form: 119/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/60+45/63 28/60+90/63 84/60+45/63