Add 20/7 and 64/90
1st number: 2 6/7, 2nd number: 64/90
20/7 + 64/90 is 1124/315.
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,
20/7 = 20 × 90/7 × 90 = 1800/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
64/90 = 64 × 7/90 × 7 = 448/630 - Add the two like fractions:
1800/630 + 448/630 = 1800 + 448/630 = 2248/630 - 2248/630 simplified gives 1124/315
- So, 20/7 + 64/90 = 1124/315
In mixed form: 3179/315
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