Add 80/90 and 9/8
1st number: 80/90, 2nd number: 1 1/8
80/90 + 9/8 is 145/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
80/90 = 80 × 4/90 × 4 = 320/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
9/8 = 9 × 45/8 × 45 = 405/360 - Add the two like fractions:
320/360 + 405/360 = 320 + 405/360 = 725/360 - 725/360 simplified gives 145/72
- So, 80/90 + 9/8 = 145/72
In mixed form: 21/72
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