Add 30/20 and 54/48
1st number: 1 10/20, 2nd number: 1 6/48
30/20 + 54/48 is 21/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 20 × 12 = 240,
30/20 = 30 × 12/20 × 12 = 360/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
54/48 = 54 × 5/48 × 5 = 270/240 - Add the two like fractions:
360/240 + 270/240 = 360 + 270/240 = 630/240 - 630/240 simplified gives 21/8
- So, 30/20 + 54/48 = 21/8
In mixed form: 25/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+54/48 30/40+54/48 30/20+54/96 90/20+54/48 30/60+54/48