Add 80/90 and 90/72
1st number: 80/90, 2nd number: 1 18/72
80/90 + 90/72 is 77/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 72 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 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Add the two like fractions:
320/360 + 450/360 = 320 + 450/360 = 770/360 - 770/360 simplified gives 77/36
- So, 80/90 + 90/72 = 77/36
In mixed form: 25/36
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