Add 28/56 and 90/15
1st number: 28/56, 2nd number: 6 0/15
28/56 + 90/15 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
28/56 = 28 × 15/56 × 15 = 420/840 - Likewise, for the 2nd fraction, since 15 × 56 = 840,
90/15 = 90 × 56/15 × 56 = 5040/840 - Add the two like fractions:
420/840 + 5040/840 = 420 + 5040/840 = 5460/840 - 5460/840 simplified gives 13/2
- So, 28/56 + 90/15 = 13/2
In mixed form: 61/2
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