Add 40/3 and 21/90
1st number: 13 1/3, 2nd number: 21/90
40/3 + 21/90 is 407/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
40/3 = 40 × 30/3 × 30 = 1200/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Add the two like fractions:
1200/90 + 21/90 = 1200 + 21/90 = 1221/90 - 1221/90 simplified gives 407/30
- So, 40/3 + 21/90 = 407/30
In mixed form: 1317/30
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