Add 40/70 and 18/30
40/70 + 18/30 is 41/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
40/70 = 40 × 3/70 × 3 = 120/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
18/30 = 18 × 7/30 × 7 = 126/210 - Add the two like fractions:
120/210 + 126/210 = 120 + 126/210 = 246/210 - 246/210 simplified gives 41/35
- So, 40/70 + 18/30 = 41/35
In mixed form: 16/35
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