Add 54/90 and 45/40
1st number: 54/90, 2nd number: 1 5/40
54/90 + 45/40 is 69/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
54/90 = 54 × 4/90 × 4 = 216/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
45/40 = 45 × 9/40 × 9 = 405/360 - Add the two like fractions:
216/360 + 405/360 = 216 + 405/360 = 621/360 - 621/360 simplified gives 69/40
- So, 54/90 + 45/40 = 69/40
In mixed form: 129/40
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