Add 21/18 and 7/70
1st number: 1 3/18, 2nd number: 7/70
21/18 + 7/70 is 19/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
21/18 = 21 × 35/18 × 35 = 735/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
7/70 = 7 × 9/70 × 9 = 63/630 - Add the two like fractions:
735/630 + 63/630 = 735 + 63/630 = 798/630 - 798/630 simplified gives 19/15
- So, 21/18 + 7/70 = 19/15
In mixed form: 14/15
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