Add 90/40 and 1/84
1st number: 2 10/40, 2nd number: 1/84
90/40 + 1/84 is 95/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
90/40 = 90 × 21/40 × 21 = 1890/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
1/84 = 1 × 10/84 × 10 = 10/840 - Add the two like fractions:
1890/840 + 10/840 = 1890 + 10/840 = 1900/840 - 1900/840 simplified gives 95/42
- So, 90/40 + 1/84 = 95/42
In mixed form: 211/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/40+2/84 90/80+1/84 90/40+3/84 90/40+5/84 90/40+7/84