Add 36/20 and 72/90
1st number: 1 16/20, 2nd number: 72/90
36/20 + 72/90 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
36/20 = 36 × 9/20 × 9 = 324/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
72/90 = 72 × 2/90 × 2 = 144/180 - Add the two like fractions:
324/180 + 144/180 = 324 + 144/180 = 468/180 - 468/180 simplified gives 13/5
- So, 36/20 + 72/90 = 13/5
In mixed form: 23/5
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