Add 9/30 and 60/42
1st number: 9/30, 2nd number: 1 18/42
9/30 + 60/42 is 121/70.
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,
60/42 = 60 × 5/42 × 5 = 300/210 - Add the two like fractions:
63/210 + 300/210 = 63 + 300/210 = 363/210 - 363/210 simplified gives 121/70
- So, 9/30 + 60/42 = 121/70
In mixed form: 151/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30+60/42 9/60+60/42 9/30+60/84 27/30+60/42 9/90+60/42 45/30+60/42 63/30+60/42