Add 50/45 and 4/21
1st number: 1 5/45, 2nd number: 4/21
50/45 + 4/21 is 82/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 21 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
50/45 = 50 × 7/45 × 7 = 350/315 - Likewise, for the 2nd fraction, since 21 × 15 = 315,
4/21 = 4 × 15/21 × 15 = 60/315 - Add the two like fractions:
350/315 + 60/315 = 350 + 60/315 = 410/315 - 410/315 simplified gives 82/63
- So, 50/45 + 4/21 = 82/63
In mixed form: 119/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/45+8/21 50/90+4/21 50/45+4/42 50/45+12/21 50/45+4/63 50/45+20/21 50/45+28/21