Add 30/45 and 12/48
30/45 + 12/48 is 11/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
30/45 = 30 × 16/45 × 16 = 480/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
12/48 = 12 × 15/48 × 15 = 180/720 - Add the two like fractions:
480/720 + 180/720 = 480 + 180/720 = 660/720 - 660/720 simplified gives 11/12
- So, 30/45 + 12/48 = 11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/45+12/48 30/45+24/48 30/90+12/48 30/45+12/96 90/45+12/48 30/45+36/48 30/45+60/48 30/45+84/48