Add 21/45 and 90/14
1st number: 21/45, 2nd number: 6 6/14
21/45 + 90/14 is 724/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
21/45 = 21 × 14/45 × 14 = 294/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
90/14 = 90 × 45/14 × 45 = 4050/630 - Add the two like fractions:
294/630 + 4050/630 = 294 + 4050/630 = 4344/630 - 4344/630 simplified gives 724/105
- So, 21/45 + 90/14 = 724/105
In mixed form: 694/105
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