Add 25/21 and 4/90
1st number: 1 4/21, 2nd number: 4/90
25/21 + 4/90 is 389/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 21 × 30 = 630,
25/21 = 25 × 30/21 × 30 = 750/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
4/90 = 4 × 7/90 × 7 = 28/630 - Add the two like fractions:
750/630 + 28/630 = 750 + 28/630 = 778/630 - 778/630 simplified gives 389/315
- So, 25/21 + 4/90 = 389/315
In mixed form: 174/315
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