Add 45/4 and 90/72
1st number: 11 1/4, 2nd number: 1 18/72
45/4 + 90/72 is 25/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
45/4 = 45 × 18/4 × 18 = 810/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Add the two like fractions:
810/72 + 90/72 = 810 + 90/72 = 900/72 - 900/72 simplified gives 25/2
- So, 45/4 + 90/72 = 25/2
In mixed form: 121/2
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