Add 25/8 and 80/90
1st number: 3 1/8, 2nd number: 80/90
25/8 + 80/90 is 289/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
25/8 = 25 × 45/8 × 45 = 1125/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
80/90 = 80 × 4/90 × 4 = 320/360 - Add the two like fractions:
1125/360 + 320/360 = 1125 + 320/360 = 1445/360 - 1445/360 simplified gives 289/72
- So, 25/8 + 80/90 = 289/72
In mixed form: 41/72
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