Add 50/72 and 80/90
50/72 + 80/90 is 19/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
50/72 = 50 × 5/72 × 5 = 250/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
80/90 = 80 × 4/90 × 4 = 320/360 - Add the two like fractions:
250/360 + 320/360 = 250 + 320/360 = 570/360 - 570/360 simplified gives 19/12
- So, 50/72 + 80/90 = 19/12
In mixed form: 17/12
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