Add 2/30 and 15/42
2/30 + 15/42 is 89/210.
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,
2/30 = 2 × 7/30 × 7 = 14/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
15/42 = 15 × 5/42 × 5 = 75/210 - Add the two like fractions:
14/210 + 75/210 = 14 + 75/210 = 89/210 - So, 2/30 + 15/42 = 89/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/30+15/42 2/30+30/42 2/60+15/42 2/30+15/84 6/30+15/42 2/30+45/42 2/90+15/42 10/30+15/42 2/30+75/42 14/30+15/42