Add 5/30 and 10/42
5/30 + 10/42 is 17/42.
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,
5/30 = 5 × 7/30 × 7 = 35/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
10/42 = 10 × 5/42 × 5 = 50/210 - Add the two like fractions:
35/210 + 50/210 = 35 + 50/210 = 85/210 - 85/210 simplified gives 17/42
- So, 5/30 + 10/42 = 17/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30+10/42 5/30+20/42 5/60+10/42 5/30+10/84 15/30+10/42 5/30+30/42 5/90+10/42 25/30+10/42 5/30+50/42 35/30+10/42 5/30+70/42