Add 49/42 and 40/30
1st number: 1 7/42, 2nd number: 1 10/30
49/42 + 40/30 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
49/42 = 49 × 5/42 × 5 = 245/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
40/30 = 40 × 7/30 × 7 = 280/210 - Add the two like fractions:
245/210 + 280/210 = 245 + 280/210 = 525/210 - 525/210 simplified gives 5/2
- So, 49/42 + 40/30 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/42+40/30 49/42+80/30 49/84+40/30 49/42+40/60 49/42+40/90