Add 42/2 and 16/45
1st number: 21 0/2, 2nd number: 16/45
42/2 + 16/45 is 961/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
42/2 = 42 × 45/2 × 45 = 1890/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
16/45 = 16 × 2/45 × 2 = 32/90 - Add the two like fractions:
1890/90 + 32/90 = 1890 + 32/90 = 1922/90 - 1922/90 simplified gives 961/45
- So, 42/2 + 16/45 = 961/45
In mixed form: 2116/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+16/45 42/2+32/45 42/4+16/45 42/2+16/90 42/2+48/45 42/6+16/45 42/2+80/45 42/10+16/45 42/14+16/45