Add 4/42 and 25/70
4/42 + 25/70 is 19/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
4/42 = 4 × 5/42 × 5 = 20/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
25/70 = 25 × 3/70 × 3 = 75/210 - Add the two like fractions:
20/210 + 75/210 = 20 + 75/210 = 95/210 - 95/210 simplified gives 19/42
- So, 4/42 + 25/70 = 19/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/42+25/70 4/42+50/70 4/84+25/70 12/42+25/70 4/42+75/70 20/42+25/70 28/42+25/70