Add 72/7 and 15/70
1st number: 10 2/7, 2nd number: 15/70
72/7 + 15/70 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
72/7 = 72 × 10/7 × 10 = 720/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
15/70 = 15 × 1/70 × 1 = 15/70 - Add the two like fractions:
720/70 + 15/70 = 720 + 15/70 = 735/70 - 735/70 simplified gives 21/2
- So, 72/7 + 15/70 = 21/2
In mixed form: 101/2
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