Add 9/40 and 81/28
1st number: 9/40, 2nd number: 2 25/28
9/40 + 81/28 is 873/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 28 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
9/40 = 9 × 7/40 × 7 = 63/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
81/28 = 81 × 10/28 × 10 = 810/280 - Add the two like fractions:
63/280 + 810/280 = 63 + 810/280 = 873/280 - So, 9/40 + 81/28 = 873/280
In mixed form: 333/280
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