Add 63/90 and 21/49
63/90 + 21/49 is 79/70.
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,
63/90 = 63 × 49/90 × 49 = 3087/4410 - Likewise, for the 2nd fraction, since 49 × 90 = 4410,
21/49 = 21 × 90/49 × 90 = 1890/4410 - Add the two like fractions:
3087/4410 + 1890/4410 = 3087 + 1890/4410 = 4977/4410 - 4977/4410 simplified gives 79/70
- So, 63/90 + 21/49 = 79/70
In mixed form: 19/70
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