Add 21/36 and 81/45
1st number: 21/36, 2nd number: 1 36/45
21/36 + 81/45 is 143/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
81/45 = 81 × 4/45 × 4 = 324/180 - Add the two like fractions:
105/180 + 324/180 = 105 + 324/180 = 429/180 - 429/180 simplified gives 143/60
- So, 21/36 + 81/45 = 143/60
In mixed form: 223/60
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