Add 21/45 and 90/16
1st number: 21/45, 2nd number: 5 10/16
21/45 + 90/16 is 731/120.
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,
21/45 = 21 × 16/45 × 16 = 336/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
90/16 = 90 × 45/16 × 45 = 4050/720 - Add the two like fractions:
336/720 + 4050/720 = 336 + 4050/720 = 4386/720 - 4386/720 simplified gives 731/120
- So, 21/45 + 90/16 = 731/120
In mixed form: 611/120
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