Add 72/90 and 12/35
72/90 + 12/35 is 8/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
72/90 = 72 × 7/90 × 7 = 504/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
12/35 = 12 × 18/35 × 18 = 216/630 - Add the two like fractions:
504/630 + 216/630 = 504 + 216/630 = 720/630 - 720/630 simplified gives 8/7
- So, 72/90 + 12/35 = 8/7
In mixed form: 11/7
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