Add 27/40 and 45/28
1st number: 27/40, 2nd number: 1 17/28
27/40 + 45/28 is 639/280.
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,
27/40 = 27 × 7/40 × 7 = 189/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
45/28 = 45 × 10/28 × 10 = 450/280 - Add the two like fractions:
189/280 + 450/280 = 189 + 450/280 = 639/280 - So, 27/40 + 45/28 = 639/280
In mixed form: 279/280
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