Add 15/5 and 63/28
1st number: 3 0/5, 2nd number: 2 7/28
15/5 + 63/28 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 5 × 28 = 140,
15/5 = 15 × 28/5 × 28 = 420/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
63/28 = 63 × 5/28 × 5 = 315/140 - Add the two like fractions:
420/140 + 315/140 = 420 + 315/140 = 735/140 - 735/140 simplified gives 21/4
- So, 15/5 + 63/28 = 21/4
In mixed form: 51/4
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