Add 28/8 and 81/15
1st number: 3 4/8, 2nd number: 5 6/15
28/8 + 81/15 is 89/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
28/8 = 28 × 15/8 × 15 = 420/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
81/15 = 81 × 8/15 × 8 = 648/120 - Add the two like fractions:
420/120 + 648/120 = 420 + 648/120 = 1068/120 - 1068/120 simplified gives 89/10
- So, 28/8 + 81/15 = 89/10
In mixed form: 89/10
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