Add 36/40 and 81/90
36/40 + 81/90 is 9/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
36/40 = 36 × 9/40 × 9 = 324/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
81/90 = 81 × 4/90 × 4 = 324/360 - Add the two like fractions:
324/360 + 324/360 = 324 + 324/360 = 648/360 - 648/360 simplified gives 9/5
- So, 36/40 + 81/90 = 9/5
In mixed form: 14/5
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