Add 90/10 and 16/42
1st number: 9 0/10, 2nd number: 16/42
90/10 + 16/42 is 197/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
90/10 = 90 × 21/10 × 21 = 1890/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
16/42 = 16 × 5/42 × 5 = 80/210 - Add the two like fractions:
1890/210 + 80/210 = 1890 + 80/210 = 1970/210 - 1970/210 simplified gives 197/21
- So, 90/10 + 16/42 = 197/21
In mixed form: 98/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10+32/42 90/20+16/42 90/10+16/84 90/10+48/42 90/30+16/42 90/10+80/42 90/50+16/42 90/70+16/42