Add 3/28 and 25/30
3/28 + 25/30 is 79/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
3/28 = 3 × 15/28 × 15 = 45/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
25/30 = 25 × 14/30 × 14 = 350/420 - Add the two like fractions:
45/420 + 350/420 = 45 + 350/420 = 395/420 - 395/420 simplified gives 79/84
- So, 3/28 + 25/30 = 79/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28+25/30 3/28+50/30 3/56+25/30 3/28+25/60 9/28+25/30 3/28+75/30 3/84+25/30 3/28+25/90 15/28+25/30 21/28+25/30