Cancel like terms is dependent of the order of factors in the numerator and denominator #232

step 1: (45 * 3)/(45 * 3)
step 2: 45 / 45
step 3: (1 * 45) / (1 * 45)
step 4: 1

while instead
step 1: (45 * 3)/(3 * 45)
step 2: (15 * 3) / 45
step 3: (1 * 3) / 3
step 4: 3 / 3
step 5: (1 * 3) / (1 * 3)
step 6: 1

This can probably be fixed by just adding a check before proceeding to "cancelTerms" in "cancelLikeTerms".