Add 48/60 and 60/21
1st number: 48/60, 2nd number: 2 18/21
48/60 + 60/21 is 128/35.
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,
48/60 = 48 × 7/60 × 7 = 336/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
60/21 = 60 × 20/21 × 20 = 1200/420 - Add the two like fractions:
336/420 + 1200/420 = 336 + 1200/420 = 1536/420 - 1536/420 simplified gives 128/35
- So, 48/60 + 60/21 = 128/35
In mixed form: 323/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/60+60/21 48/60+60/42 48/60+60/63