Add 30/35 and 42/72
30/35 + 42/72 is 121/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 35 × 72 = 2520,
30/35 = 30 × 72/35 × 72 = 2160/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
42/72 = 42 × 35/72 × 35 = 1470/2520 - Add the two like fractions:
2160/2520 + 1470/2520 = 2160 + 1470/2520 = 3630/2520 - 3630/2520 simplified gives 121/84
- So, 30/35 + 42/72 = 121/84
In mixed form: 137/84
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