Add 45/80 and 5/4
1st number: 45/80, 2nd number: 1 1/4
45/80 + 5/4 is 29/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 4 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
45/80 = 45 × 1/80 × 1 = 45/80 - Likewise, for the 2nd fraction, since 4 × 20 = 80,
5/4 = 5 × 20/4 × 20 = 100/80 - Add the two like fractions:
45/80 + 100/80 = 45 + 100/80 = 145/80 - 145/80 simplified gives 29/16
- So, 45/80 + 5/4 = 29/16
In mixed form: 113/16
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