Add 70/90 and 54/8
1st number: 70/90, 2nd number: 6 6/8
70/90 + 54/8 is 271/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
70/90 = 70 × 4/90 × 4 = 280/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
54/8 = 54 × 45/8 × 45 = 2430/360 - Add the two like fractions:
280/360 + 2430/360 = 280 + 2430/360 = 2710/360 - 2710/360 simplified gives 271/36
- So, 70/90 + 54/8 = 271/36
In mixed form: 719/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90+54/16 70/90+54/24 70/90+54/40 70/90+54/56