Add 20/30 and 30/28
1st number: 20/30, 2nd number: 1 2/28
20/30 + 30/28 is 73/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
20/30 = 20 × 14/30 × 14 = 280/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
30/28 = 30 × 15/28 × 15 = 450/420 - Add the two like fractions:
280/420 + 450/420 = 280 + 450/420 = 730/420 - 730/420 simplified gives 73/42
- So, 20/30 + 30/28 = 73/42
In mixed form: 131/42
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