Add 54/28 and 42/45
1st number: 1 26/28, 2nd number: 42/45
54/28 + 42/45 is 601/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
54/28 = 54 × 45/28 × 45 = 2430/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
42/45 = 42 × 28/45 × 28 = 1176/1260 - Add the two like fractions:
2430/1260 + 1176/1260 = 2430 + 1176/1260 = 3606/1260 - 3606/1260 simplified gives 601/210
- So, 54/28 + 42/45 = 601/210
In mixed form: 2181/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28+84/45 54/56+42/45 54/28+42/90 54/84+42/45