Add 81/4 and 45/40
1st number: 20 1/4, 2nd number: 1 5/40
81/4 + 45/40 is 171/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
81/4 = 81 × 10/4 × 10 = 810/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
45/40 = 45 × 1/40 × 1 = 45/40 - Add the two like fractions:
810/40 + 45/40 = 810 + 45/40 = 855/40 - 855/40 simplified gives 171/8
- So, 81/4 + 45/40 = 171/8
In mixed form: 213/8
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