Add 28/63 and 16/20
28/63 + 16/20 is 56/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
28/63 = 28 × 20/63 × 20 = 560/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
16/20 = 16 × 63/20 × 63 = 1008/1260 - Add the two like fractions:
560/1260 + 1008/1260 = 560 + 1008/1260 = 1568/1260 - 1568/1260 simplified gives 56/45
- So, 28/63 + 16/20 = 56/45
In mixed form: 111/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/63+16/20 28/63+32/20 28/63+16/40 84/63+16/20 28/63+48/20 28/63+16/60 28/63+80/20