Add 81/28 and 9/72
1st number: 2 25/28, 2nd number: 9/72
81/28 + 9/72 is 169/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
81/28 = 81 × 18/28 × 18 = 1458/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
9/72 = 9 × 7/72 × 7 = 63/504 - Add the two like fractions:
1458/504 + 63/504 = 1458 + 63/504 = 1521/504 - 1521/504 simplified gives 169/56
- So, 81/28 + 9/72 = 169/56
In mixed form: 31/56
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