Add 5/28 and 42/45
5/28 + 42/45 is 467/420.
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,
5/28 = 5 × 45/28 × 45 = 225/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
42/45 = 42 × 28/45 × 28 = 1176/1260 - Add the two like fractions:
225/1260 + 1176/1260 = 225 + 1176/1260 = 1401/1260 - 1401/1260 simplified gives 467/420
- So, 5/28 + 42/45 = 467/420
In mixed form: 147/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/28+42/45 5/28+84/45 5/56+42/45 5/28+42/90 15/28+42/45 5/84+42/45 25/28+42/45 35/28+42/45