Add 80/4 and 45/90
1st number: 20 0/4, 2nd number: 45/90
80/4 + 45/90 is 41/2.
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,
80/4 = 80 × 45/4 × 45 = 3600/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
45/90 = 45 × 2/90 × 2 = 90/180 - Add the two like fractions:
3600/180 + 90/180 = 3600 + 90/180 = 3690/180 - 3690/180 simplified gives 41/2
- So, 80/4 + 45/90 = 41/2
In mixed form: 201/2
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