Add 9/30 and 4/42
9/30 + 4/42 is 83/210.
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,
9/30 = 9 × 7/30 × 7 = 63/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
4/42 = 4 × 5/42 × 5 = 20/210 - Add the two like fractions:
63/210 + 20/210 = 63 + 20/210 = 83/210 - So, 9/30 + 4/42 = 83/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30+4/42 9/30+8/42 9/60+4/42 9/30+4/84 27/30+4/42 9/30+12/42 9/90+4/42 45/30+4/42 9/30+20/42 63/30+4/42 9/30+28/42