Add 9/30 and 8/42
9/30 + 8/42 is 103/210.
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,
8/42 = 8 × 5/42 × 5 = 40/210 - Add the two like fractions:
63/210 + 40/210 = 63 + 40/210 = 103/210 - So, 9/30 + 8/42 = 103/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30+8/42 9/30+16/42 9/60+8/42 9/30+8/84 27/30+8/42 9/30+24/42 9/90+8/42 45/30+8/42 9/30+40/42 63/30+8/42 9/30+56/42