Add 90/10 and 1/84
1st number: 9 0/10, 2nd number: 1/84
90/10 + 1/84 is 757/84.
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,
90/10 = 90 × 42/10 × 42 = 3780/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
1/84 = 1 × 5/84 × 5 = 5/420 - Add the two like fractions:
3780/420 + 5/420 = 3780 + 5/420 = 3785/420 - 3785/420 simplified gives 757/84
- So, 90/10 + 1/84 = 757/84
In mixed form: 91/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10+2/84 90/20+1/84 90/10+3/84 90/30+1/84 90/10+5/84 90/50+1/84 90/10+7/84 90/70+1/84