Add 45/30 and 48/28
1st number: 1 15/30, 2nd number: 1 20/28
45/30 + 48/28 is 45/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
45/30 = 45 × 14/30 × 14 = 630/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
48/28 = 48 × 15/28 × 15 = 720/420 - Add the two like fractions:
630/420 + 720/420 = 630 + 720/420 = 1350/420 - 1350/420 simplified gives 45/14
- So, 45/30 + 48/28 = 45/14
In mixed form: 33/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+48/28 45/30+96/28 45/60+48/28 45/30+48/56 45/90+48/28 45/30+48/84