Add 80/4 and 21/90
1st number: 20 0/4, 2nd number: 21/90
80/4 + 21/90 is 607/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
80/4 = 80 × 45/4 × 45 = 3600/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
21/90 = 21 × 2/90 × 2 = 42/180 - Add the two like fractions:
3600/180 + 42/180 = 3600 + 42/180 = 3642/180 - 3642/180 simplified gives 607/30
- So, 80/4 + 21/90 = 607/30
In mixed form: 207/30
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