Add 25/28 and 84/45
1st number: 25/28, 2nd number: 1 39/45
25/28 + 84/45 is 1159/420.
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,
25/28 = 25 × 45/28 × 45 = 1125/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
84/45 = 84 × 28/45 × 28 = 2352/1260 - Add the two like fractions:
1125/1260 + 2352/1260 = 1125 + 2352/1260 = 3477/1260 - 3477/1260 simplified gives 1159/420
- So, 25/28 + 84/45 = 1159/420
In mixed form: 2319/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28+84/45 25/56+84/45 25/28+84/90 75/28+84/45 25/84+84/45