Add 56/45 and 21/70
1st number: 1 11/45, 2nd number: 21/70
56/45 + 21/70 is 139/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
56/45 = 56 × 14/45 × 14 = 784/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
21/70 = 21 × 9/70 × 9 = 189/630 - Add the two like fractions:
784/630 + 189/630 = 784 + 189/630 = 973/630 - 973/630 simplified gives 139/90
- So, 56/45 + 21/70 = 139/90
In mixed form: 149/90
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