Add 7/30 and 36/42
7/30 + 36/42 is 229/210.
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,
7/30 = 7 × 7/30 × 7 = 49/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
36/42 = 36 × 5/42 × 5 = 180/210 - Add the two like fractions:
49/210 + 180/210 = 49 + 180/210 = 229/210 - So, 7/30 + 36/42 = 229/210
In mixed form: 119/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30+36/42 7/30+72/42 7/60+36/42 7/30+36/84 21/30+36/42 7/90+36/42 35/30+36/42 49/30+36/42