Add 48/60 and 18/21
48/60 + 18/21 is 58/35.
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,
18/21 = 18 × 20/21 × 20 = 360/420 - Add the two like fractions:
336/420 + 360/420 = 336 + 360/420 = 696/420 - 696/420 simplified gives 58/35
- So, 48/60 + 18/21 = 58/35
In mixed form: 123/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/60+18/21 48/60+36/21 48/60+18/42 48/60+54/21 48/60+18/63 48/60+90/21