Add 45/4 and 72/90
1st number: 11 1/4, 2nd number: 72/90
45/4 + 72/90 is 241/20.
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,
45/4 = 45 × 45/4 × 45 = 2025/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
72/90 = 72 × 2/90 × 2 = 144/180 - Add the two like fractions:
2025/180 + 144/180 = 2025 + 144/180 = 2169/180 - 2169/180 simplified gives 241/20
- So, 45/4 + 72/90 = 241/20
In mixed form: 121/20
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