Add 36/56 and 70/90
36/56 + 70/90 is 179/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
36/56 = 36 × 45/56 × 45 = 1620/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
70/90 = 70 × 28/90 × 28 = 1960/2520 - Add the two like fractions:
1620/2520 + 1960/2520 = 1620 + 1960/2520 = 3580/2520 - 3580/2520 simplified gives 179/126
- So, 36/56 + 70/90 = 179/126
In mixed form: 153/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/56+70/90