Add 21/90 and 54/49
1st number: 21/90, 2nd number: 1 5/49
21/90 + 54/49 is 1963/1470.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 49 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
21/90 = 21 × 49/90 × 49 = 1029/4410 - Likewise, for the 2nd fraction, since 49 × 90 = 4410,
54/49 = 54 × 90/49 × 90 = 4860/4410 - Add the two like fractions:
1029/4410 + 4860/4410 = 1029 + 4860/4410 = 5889/4410 - 5889/4410 simplified gives 1963/1470
- So, 21/90 + 54/49 = 1963/1470
In mixed form: 1493/1470
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