Add 24/30 and 28/42
24/30 + 28/42 is 22/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
24/30 = 24 × 7/30 × 7 = 168/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
28/42 = 28 × 5/42 × 5 = 140/210 - Add the two like fractions:
168/210 + 140/210 = 168 + 140/210 = 308/210 - 308/210 simplified gives 22/15
- So, 24/30 + 28/42 = 22/15
In mixed form: 17/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/30+28/42 24/30+56/42 24/60+28/42 24/30+28/84 72/30+28/42 24/30+84/42 24/90+28/42