Add 63/84 and 24/45
63/84 + 24/45 is 77/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
63/84 = 63 × 15/84 × 15 = 945/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
24/45 = 24 × 28/45 × 28 = 672/1260 - Add the two like fractions:
945/1260 + 672/1260 = 945 + 672/1260 = 1617/1260 - 1617/1260 simplified gives 77/60
- So, 63/84 + 24/45 = 77/60
In mixed form: 117/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/84+48/45 63/84+24/90 63/84+72/45