Add 28/56 and 90/45
1st number: 28/56, 2nd number: 2 0/45
28/56 + 90/45 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
28/56 = 28 × 45/56 × 45 = 1260/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
90/45 = 90 × 56/45 × 56 = 5040/2520 - Add the two like fractions:
1260/2520 + 5040/2520 = 1260 + 5040/2520 = 6300/2520 - 6300/2520 simplified gives 5/2
- So, 28/56 + 90/45 = 5/2
In mixed form: 21/2
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