Add 70/7 and 80/72
1st number: 10 0/7, 2nd number: 1 8/72
70/7 + 80/72 is 100/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
70/7 = 70 × 72/7 × 72 = 5040/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
80/72 = 80 × 7/72 × 7 = 560/504 - Add the two like fractions:
5040/504 + 560/504 = 5040 + 560/504 = 5600/504 - 5600/504 simplified gives 100/9
- So, 70/7 + 80/72 = 100/9
In mixed form: 111/9
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