Add 90/3 and 21/45
1st number: 30 0/3, 2nd number: 21/45
90/3 + 21/45 is 457/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 3 × 15 = 45,
90/3 = 90 × 15/3 × 15 = 1350/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
21/45 = 21 × 1/45 × 1 = 21/45 - Add the two like fractions:
1350/45 + 21/45 = 1350 + 21/45 = 1371/45 - 1371/45 simplified gives 457/15
- So, 90/3 + 21/45 = 457/15
In mixed form: 307/15
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