Add 7/4 and 45/90
1st number: 1 3/4, 2nd number: 45/90
7/4 + 45/90 is 9/4.
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,
7/4 = 7 × 45/4 × 45 = 315/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
45/90 = 45 × 2/90 × 2 = 90/180 - Add the two like fractions:
315/180 + 90/180 = 315 + 90/180 = 405/180 - 405/180 simplified gives 9/4
- So, 7/4 + 45/90 = 9/4
In mixed form: 21/4
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