Add 45/10 and 18/84
1st number: 4 5/10, 2nd number: 18/84
45/10 + 18/84 is 33/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
45/10 = 45 × 42/10 × 42 = 1890/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
18/84 = 18 × 5/84 × 5 = 90/420 - Add the two like fractions:
1890/420 + 90/420 = 1890 + 90/420 = 1980/420 - 1980/420 simplified gives 33/7
- So, 45/10 + 18/84 = 33/7
In mixed form: 45/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10+18/84 45/10+36/84 45/20+18/84 45/10+54/84 45/30+18/84 45/10+90/84 45/50+18/84 45/70+18/84