Add 90/2 and 48/21
1st number: 45 0/2, 2nd number: 2 6/21
90/2 + 48/21 is 331/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
90/2 = 90 × 21/2 × 21 = 1890/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
48/21 = 48 × 2/21 × 2 = 96/42 - Add the two like fractions:
1890/42 + 96/42 = 1890 + 96/42 = 1986/42 - 1986/42 simplified gives 331/7
- So, 90/2 + 48/21 = 331/7
In mixed form: 472/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2+96/21 90/4+48/21 90/2+48/42 90/6+48/21 90/2+48/63 90/10+48/21 90/14+48/21