Add 28/42 and 5/30
28/42 + 5/30 is 5/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
28/42 = 28 × 5/42 × 5 = 140/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
5/30 = 5 × 7/30 × 7 = 35/210 - Add the two like fractions:
140/210 + 35/210 = 140 + 35/210 = 175/210 - 175/210 simplified gives 5/6
- So, 28/42 + 5/30 = 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+5/30 28/42+10/30 28/84+5/30 28/42+5/60 84/42+5/30 28/42+15/30 28/42+5/90 28/42+25/30 28/42+35/30