Add 15/2 and 90/70
1st number: 7 1/2, 2nd number: 1 20/70
15/2 + 90/70 is 123/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
15/2 = 15 × 35/2 × 35 = 525/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
90/70 = 90 × 1/70 × 1 = 90/70 - Add the two like fractions:
525/70 + 90/70 = 525 + 90/70 = 615/70 - 615/70 simplified gives 123/14
- So, 15/2 + 90/70 = 123/14
In mixed form: 811/14
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