Add 81/45 and 2/20
1st number: 1 36/45, 2nd number: 2/20
81/45 + 2/20 is 19/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
81/45 = 81 × 4/45 × 4 = 324/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
2/20 = 2 × 9/20 × 9 = 18/180 - Add the two like fractions:
324/180 + 18/180 = 324 + 18/180 = 342/180 - 342/180 simplified gives 19/10
- So, 81/45 + 2/20 = 19/10
In mixed form: 19/10
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