Add 30/70 and 90/40
1st number: 30/70, 2nd number: 2 10/40
30/70 + 90/40 is 75/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
30/70 = 30 × 4/70 × 4 = 120/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
90/40 = 90 × 7/40 × 7 = 630/280 - Add the two like fractions:
120/280 + 630/280 = 120 + 630/280 = 750/280 - 750/280 simplified gives 75/28
- So, 30/70 + 90/40 = 75/28
In mixed form: 219/28
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