Add 8/21 and 60/90
8/21 + 60/90 is 22/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 21 × 30 = 630,
8/21 = 8 × 30/21 × 30 = 240/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
60/90 = 60 × 7/90 × 7 = 420/630 - Add the two like fractions:
240/630 + 420/630 = 240 + 420/630 = 660/630 - 660/630 simplified gives 22/21
- So, 8/21 + 60/90 = 22/21
In mixed form: 11/21
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