Add 3/7 and 72/90
3/7 + 72/90 is 43/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
3/7 = 3 × 90/7 × 90 = 270/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
72/90 = 72 × 7/90 × 7 = 504/630 - Add the two like fractions:
270/630 + 504/630 = 270 + 504/630 = 774/630 - 774/630 simplified gives 43/35
- So, 3/7 + 72/90 = 43/35
In mixed form: 18/35
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