Add 70/9 and 20/72
1st number: 7 7/9, 2nd number: 20/72
70/9 + 20/72 is 145/18.
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,
20/72 = 20 × 1/72 × 1 = 20/72 - Add the two like fractions:
560/72 + 20/72 = 560 + 20/72 = 580/72 - 580/72 simplified gives 145/18
- So, 70/9 + 20/72 = 145/18
In mixed form: 81/18
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