Add 70/54 and 90/8
1st number: 1 16/54, 2nd number: 11 2/8
70/54 + 90/8 is 1355/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 8 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
70/54 = 70 × 4/54 × 4 = 280/216 - Likewise, for the 2nd fraction, since 8 × 27 = 216,
90/8 = 90 × 27/8 × 27 = 2430/216 - Add the two like fractions:
280/216 + 2430/216 = 280 + 2430/216 = 2710/216 - 2710/216 simplified gives 1355/108
- So, 70/54 + 90/8 = 1355/108
In mixed form: 1259/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/54+90/16 70/54+90/24 70/54+90/40 70/54+90/56