Add 90/72 and 9/8
1st number: 1 18/72, 2nd number: 1 1/8
90/72 + 9/8 is 19/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
9/8 = 9 × 9/8 × 9 = 81/72 - Add the two like fractions:
90/72 + 81/72 = 90 + 81/72 = 171/72 - 171/72 simplified gives 19/8
- So, 90/72 + 9/8 = 19/8
In mixed form: 23/8
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