Add 42/4 and 16/45
1st number: 10 2/4, 2nd number: 16/45
42/4 + 16/45 is 977/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
42/4 = 42 × 45/4 × 45 = 1890/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
16/45 = 16 × 4/45 × 4 = 64/180 - Add the two like fractions:
1890/180 + 64/180 = 1890 + 64/180 = 1954/180 - 1954/180 simplified gives 977/90
- So, 42/4 + 16/45 = 977/90
In mixed form: 1077/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4+16/45 42/4+32/45 42/8+16/45 42/4+16/90 42/4+48/45 42/12+16/45 42/4+80/45 42/20+16/45 42/28+16/45