Add 12/4 and 45/90
1st number: 3 0/4, 2nd number: 45/90
12/4 + 45/90 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
12/4 = 12 × 45/4 × 45 = 540/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
45/90 = 45 × 2/90 × 2 = 90/180 - Add the two like fractions:
540/180 + 90/180 = 540 + 90/180 = 630/180 - 630/180 simplified gives 7/2
- So, 12/4 + 45/90 = 7/2
In mixed form: 31/2
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