Add 54/15 and 20/28
1st number: 3 9/15, 2nd number: 20/28
54/15 + 20/28 is 151/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
54/15 = 54 × 28/15 × 28 = 1512/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
20/28 = 20 × 15/28 × 15 = 300/420 - Add the two like fractions:
1512/420 + 300/420 = 1512 + 300/420 = 1812/420 - 1812/420 simplified gives 151/35
- So, 54/15 + 20/28 = 151/35
In mixed form: 411/35
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