Add 5/28 and 75/21
1st number: 5/28, 2nd number: 3 12/21
5/28 + 75/21 is 15/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
5/28 = 5 × 3/28 × 3 = 15/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
75/21 = 75 × 4/21 × 4 = 300/84 - Add the two like fractions:
15/84 + 300/84 = 15 + 300/84 = 315/84 - 315/84 simplified gives 15/4
- So, 5/28 + 75/21 = 15/4
In mixed form: 33/4
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