Add 7/14 and 21/90
7/14 + 21/90 is 11/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
7/14 = 7 × 45/14 × 45 = 315/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
21/90 = 21 × 7/90 × 7 = 147/630 - Add the two like fractions:
315/630 + 147/630 = 315 + 147/630 = 462/630 - 462/630 simplified gives 11/15
- So, 7/14 + 21/90 = 11/15
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