Add 75/16 and 72/90
1st number: 4 11/16, 2nd number: 72/90
75/16 + 72/90 is 439/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
75/16 = 75 × 45/16 × 45 = 3375/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
72/90 = 72 × 8/90 × 8 = 576/720 - Add the two like fractions:
3375/720 + 576/720 = 3375 + 576/720 = 3951/720 - 3951/720 simplified gives 439/80
- So, 75/16 + 72/90 = 439/80
In mixed form: 539/80
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