Add 21/18 and 48/70
1st number: 1 3/18, 2nd number: 48/70
21/18 + 48/70 is 389/210.
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,
48/70 = 48 × 9/70 × 9 = 432/630 - Add the two like fractions:
735/630 + 432/630 = 735 + 432/630 = 1167/630 - 1167/630 simplified gives 389/210
- So, 21/18 + 48/70 = 389/210
In mixed form: 1179/210
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