Add 28/20 and 42/27
1st number: 1 8/20, 2nd number: 1 15/27
28/20 + 42/27 is 133/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
28/20 = 28 × 27/20 × 27 = 756/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
42/27 = 42 × 20/27 × 20 = 840/540 - Add the two like fractions:
756/540 + 840/540 = 756 + 840/540 = 1596/540 - 1596/540 simplified gives 133/45
- So, 28/20 + 42/27 = 133/45
In mixed form: 243/45
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