Add 54/15 and 1/28
1st number: 3 9/15, 2nd number: 1/28
54/15 + 1/28 is 509/140.
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,
1/28 = 1 × 15/28 × 15 = 15/420 - Add the two like fractions:
1512/420 + 15/420 = 1512 + 15/420 = 1527/420 - 1527/420 simplified gives 509/140
- So, 54/15 + 1/28 = 509/140
In mixed form: 389/140
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