Add 21/90 and 16/4
1st number: 21/90, 2nd number: 4 0/4
21/90 + 16/4 is 127/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
21/90 = 21 × 2/90 × 2 = 42/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
16/4 = 16 × 45/4 × 45 = 720/180 - Add the two like fractions:
42/180 + 720/180 = 42 + 720/180 = 762/180 - 762/180 simplified gives 127/30
- So, 21/90 + 16/4 = 127/30
In mixed form: 47/30
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