Add 42/21 and 50/35
1st number: 2 0/21, 2nd number: 1 15/35
42/21 + 50/35 is 24/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
42/21 = 42 × 5/21 × 5 = 210/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
50/35 = 50 × 3/35 × 3 = 150/105 - Add the two like fractions:
210/105 + 150/105 = 210 + 150/105 = 360/105 - 360/105 simplified gives 24/7
- So, 42/21 + 50/35 = 24/7
In mixed form: 33/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/21+50/35 42/21+50/70 42/63+50/35