Add 42/49 and 45/50
42/49 + 45/50 is 123/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 50 is 2450
Next, find the equivalent fraction of both fractional numbers with denominator 2450 - For the 1st fraction, since 49 × 50 = 2450,
42/49 = 42 × 50/49 × 50 = 2100/2450 - Likewise, for the 2nd fraction, since 50 × 49 = 2450,
45/50 = 45 × 49/50 × 49 = 2205/2450 - Add the two like fractions:
2100/2450 + 2205/2450 = 2100 + 2205/2450 = 4305/2450 - 4305/2450 simplified gives 123/70
- So, 42/49 + 45/50 = 123/70
In mixed form: 153/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/49+45/50 42/49+90/50 42/98+45/50