Add 28/30 and 10/42
28/30 + 10/42 is 41/35.
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,
28/30 = 28 × 7/30 × 7 = 196/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
10/42 = 10 × 5/42 × 5 = 50/210 - Add the two like fractions:
196/210 + 50/210 = 196 + 50/210 = 246/210 - 246/210 simplified gives 41/35
- So, 28/30 + 10/42 = 41/35
In mixed form: 16/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30+10/42 28/30+20/42 28/60+10/42 28/30+10/84 84/30+10/42 28/30+30/42 28/90+10/42 28/30+50/42 28/30+70/42