Add 56/20 and 81/45
1st number: 2 16/20, 2nd number: 1 36/45
56/20 + 81/45 is 23/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
56/20 = 56 × 9/20 × 9 = 504/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
81/45 = 81 × 4/45 × 4 = 324/180 - Add the two like fractions:
504/180 + 324/180 = 504 + 324/180 = 828/180 - 828/180 simplified gives 23/5
- So, 56/20 + 81/45 = 23/5
In mixed form: 43/5
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