Add 70/42 and 36/40
1st number: 1 28/42, 2nd number: 36/40
70/42 + 36/40 is 77/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 42 × 20 = 840,
70/42 = 70 × 20/42 × 20 = 1400/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
36/40 = 36 × 21/40 × 21 = 756/840 - Add the two like fractions:
1400/840 + 756/840 = 1400 + 756/840 = 2156/840 - 2156/840 simplified gives 77/30
- So, 70/42 + 36/40 = 77/30
In mixed form: 217/30
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