Add 72/10 and 90/7
1st number: 7 2/10, 2nd number: 12 6/7
72/10 + 90/7 is 702/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
72/10 = 72 × 7/10 × 7 = 504/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
90/7 = 90 × 10/7 × 10 = 900/70 - Add the two like fractions:
504/70 + 900/70 = 504 + 900/70 = 1404/70 - 1404/70 simplified gives 702/35
- So, 72/10 + 90/7 = 702/35
In mixed form: 202/35
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