Add 70/9 and 90/72
1st number: 7 7/9, 2nd number: 1 18/72
70/9 + 90/72 is 325/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
70/9 = 70 × 8/9 × 8 = 560/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Add the two like fractions:
560/72 + 90/72 = 560 + 90/72 = 650/72 - 650/72 simplified gives 325/36
- So, 70/9 + 90/72 = 325/36
In mixed form: 91/36
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