Add 63/60 and 48/21
1st number: 1 3/60, 2nd number: 2 6/21
63/60 + 48/21 is 467/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
63/60 = 63 × 7/60 × 7 = 441/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
48/21 = 48 × 20/21 × 20 = 960/420 - Add the two like fractions:
441/420 + 960/420 = 441 + 960/420 = 1401/420 - 1401/420 simplified gives 467/140
- So, 63/60 + 48/21 = 467/140
In mixed form: 347/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/60+96/21 63/60+48/42 63/60+48/63