Add 40/45 and 21/16
1st number: 40/45, 2nd number: 1 5/16
40/45 + 21/16 is 317/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
40/45 = 40 × 16/45 × 16 = 640/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
21/16 = 21 × 45/16 × 45 = 945/720 - Add the two like fractions:
640/720 + 945/720 = 640 + 945/720 = 1585/720 - 1585/720 simplified gives 317/144
- So, 40/45 + 21/16 = 317/144
In mixed form: 229/144
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