Add 21/49 and 28/90
21/49 + 28/90 is 233/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 49 × 90 = 4410,
21/49 = 21 × 90/49 × 90 = 1890/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
28/90 = 28 × 49/90 × 49 = 1372/4410 - Add the two like fractions:
1890/4410 + 1372/4410 = 1890 + 1372/4410 = 3262/4410 - 3262/4410 simplified gives 233/315
- So, 21/49 + 28/90 = 233/315
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