Add 45/42 and 4/30
1st number: 1 3/42, 2nd number: 4/30
45/42 + 4/30 is 253/210.
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,
45/42 = 45 × 5/42 × 5 = 225/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
4/30 = 4 × 7/30 × 7 = 28/210 - Add the two like fractions:
225/210 + 28/210 = 225 + 28/210 = 253/210 - So, 45/42 + 4/30 = 253/210
In mixed form: 143/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42+4/30 45/42+8/30 45/84+4/30 45/42+4/60 45/42+12/30 45/42+4/90 45/42+20/30 45/42+28/30