Add 72/9 and 42/10
1st number: 8 0/9, 2nd number: 4 2/10
72/9 + 42/10 is 61/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
72/9 = 72 × 10/9 × 10 = 720/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
42/10 = 42 × 9/10 × 9 = 378/90 - Add the two like fractions:
720/90 + 378/90 = 720 + 378/90 = 1098/90 - 1098/90 simplified gives 61/5
- So, 72/9 + 42/10 = 61/5
In mixed form: 121/5
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