Add 81/70 and 30/45
1st number: 1 11/70, 2nd number: 30/45
81/70 + 30/45 is 383/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
81/70 = 81 × 9/70 × 9 = 729/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
30/45 = 30 × 14/45 × 14 = 420/630 - Add the two like fractions:
729/630 + 420/630 = 729 + 420/630 = 1149/630 - 1149/630 simplified gives 383/210
- So, 81/70 + 30/45 = 383/210
In mixed form: 1173/210
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