Add 21/63 and 5/60
21/63 + 5/60 is 5/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 60 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
21/63 = 21 × 20/63 × 20 = 420/1260 - Likewise, for the 2nd fraction, since 60 × 21 = 1260,
5/60 = 5 × 21/60 × 21 = 105/1260 - Add the two like fractions:
420/1260 + 105/1260 = 420 + 105/1260 = 525/1260 - 525/1260 simplified gives 5/12
- So, 21/63 + 5/60 = 5/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/63+5/60 21/63+10/60 21/63+15/60 21/63+25/60 21/63+35/60