Add 9/30 and 6/42
9/30 + 6/42 is 31/70.
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,
9/30 = 9 × 7/30 × 7 = 63/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
6/42 = 6 × 5/42 × 5 = 30/210 - Add the two like fractions:
63/210 + 30/210 = 63 + 30/210 = 93/210 - 93/210 simplified gives 31/70
- So, 9/30 + 6/42 = 31/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30+6/42 9/30+12/42 9/60+6/42 9/30+6/84 27/30+6/42 9/30+18/42 9/90+6/42 45/30+6/42 9/30+30/42 63/30+6/42