Add 90/30 and 40/56
1st number: 3 0/30, 2nd number: 40/56
90/30 + 40/56 is 26/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 30 × 28 = 840,
90/30 = 90 × 28/30 × 28 = 2520/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
40/56 = 40 × 15/56 × 15 = 600/840 - Add the two like fractions:
2520/840 + 600/840 = 2520 + 600/840 = 3120/840 - 3120/840 simplified gives 26/7
- So, 90/30 + 40/56 = 26/7
In mixed form: 35/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+80/56 90/60+40/56