Add 25/42 and 70/30
1st number: 25/42, 2nd number: 2 10/30
25/42 + 70/30 is 41/14.
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,
25/42 = 25 × 5/42 × 5 = 125/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210 - Add the two like fractions:
125/210 + 490/210 = 125 + 490/210 = 615/210 - 615/210 simplified gives 41/14
- So, 25/42 + 70/30 = 41/14
In mixed form: 213/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+70/30 25/84+70/30 25/42+70/60 75/42+70/30 25/42+70/90